CN1497811A

CN1497811A - Organic Laser Cavity Array

Info

Publication number: CN1497811A
Application number: CNA2003101003297A
Authority: CN
Inventors: Jp; J·P·斯布恩豪尔; J·A·曼尼科; �ݶ�ũ��޹�˾; E·考凡农; D·L·帕顿
Original assignee: Eastman Kodak Co
Current assignee: Eastman Kodak Co
Priority date: 2002-10-16
Filing date: 2003-10-14
Publication date: 2004-05-19

Abstract

An organic laser cavity structure is described, comprising a plurality of organic laser cavity devices, each organic laser cavity device characterized by: i) a first dielectric stack for receiving and transmitting pump beam light and being reflective to laser light over a predetermined range of wavelengths; ii) an organic active region for receiving transmitted pump beam light from the first dielectric stack and for emitting light; iii) a second dielectric stack for reflecting transmitted pump beam light and laser light from the organic active region back into the organic active region, wherein a combination of the first and second dielectric stacks and the organic active region produces the laser light; and a predetermined arrangement of the plurality of organic laser cavity devices, such that a desired laser output is obtained.

Description

The organic laser cavity array

Technical field

The present invention relates generally to vertical cavity surface emitting laser (Vertical Cavity SurfaceEmitting Laser, VCSEL) or microcavity, particularly organic micro-cavity laser or organic VCSEL.More specifically say, the present invention relates to the various arrays of organic laser cavity.

Background technology

The vertical cavity surface emitting laser of making based on inorganic semiconductor (as AlGaAs) (VCSEL) developed from the eighties middle period (sees people such as Kinoshita, IEEEJournal of Quantum Electronics, Vol.QE-23, No.6, in June, 1987).Now reached such level, the VCSEL of the emission 850nm that a lot of companies make based on AlGaAs, its phase in longevity surpasses 100 years people such as (, Proceedings of the IEEE, Vol.85, No11, in November, 1997) Choquette.Along with succeeding in developing of these near infrared lasers, attentiveness has turned to other inorganic material systems and has come production visible emitting wave-length coverage interior VCSEL (Wilmsen, Vertical-Cavity Surface-Emitting Lasers, Cambridge University Press in recent years, Cambridge, calendar year 2001).Visible laser has a lot of potential purposes, as show, the optical storage read/write, laser printing, and the communication of square journey (people such as Ishigure, Electronics Letters, 16 of using plastic fiber ^Th, March nineteen ninety-five, Vol.31, No.6).Although there is the effort of industry of many families and research laboratory in the whole world, design visible radiation laser diode (fringe radiation body or VCSEL) and produce the light output of crossing over visible spectrum, still have a plurality of work to do.

When attempting to produce the VCSEL of visible wavelength, abandon the system of inorganic based and be the laser system that attentiveness focuses on organic group useful, because the gain material of organic group has many good qualities than the gain material of inorganic based in limit of visible spectrum.For example, the non-pumping scattered/absorbed loss of the gain material of typical organic group is little, the quantum efficiency height.With inorganic laser system relatively, the manufacturing cost of organic laser is relatively cheap, can make arbitrary dimension in whole visible-range emission, and the most important thing is can be from single crystal radiation multi-wavelength (as ruddiness, green glow and blue light).In the past for many years in, growing to the interest of the solid state laser of making organic group.Laser gain material or high polymer material, or small molecule material, and a plurality of different structure of resonant cavity are arranged, as microcavity (people such as Kozlov, United States Patent (USP) 6,160, issue on December 12nd, 828,2000), waveguide, the annular micro laser, and distributed feed-back (is also seen people such as Kranzelbinder, Rep.Prog.Phys.63, (2000) people such as 729-762 and Diaz-Garcia, U.S. Patent No. 5,881, issue on March 9th, 083,1999).These structures have a common issue with to be, in order to produce laser, must excite cavity by optical pumping with other lasing light emitters.This laser cavity of electric pumping is better, because it becomes compacter usually and is easy to modulated structure.

The major obstacle that organic laser is done electric pumping is that the carrier mobility of organic material is low, is about 10 usually ^-5Cm ²/ (V-s).Carrier mobility is low can bring a lot of problems.The device that carrier mobility is low is limited to the employing thin layer usually, in order to avoid produce big pressure drop and ohmic heating.These thin layers cause mode of laser to be penetrated into high loss negative electrode and anode, cause laser threshold to improve a lot people such as (, Journal of Applied Physics, Vol.84, No.8, on October 15th, 1998) Kozlov.Because the electron hole is compound by bright ten thousand compound rules (recombination rate is by the carrier mobility rate metric) decision in the organic material, causes the quantity of charge carrier more than the singlet quasi-molecule so carrier mobility is low; It is that charging induction (polaron) absorbs and can become important loss mechanism people such as (, Applied Physics Letters, Vol.74, No.19, on May 10th, 1999) Tessler that one of its consequence becomes.The internal quantum of supposing laser aid is 5%, uses the minimum laser threshold～100w/cm that reported so far ²(people such as Berggren, Letters toNature, Vol.389, P.466, and on October 2nd, 1997) and the loss mechanism above-mentioned of ignoring, the following 1000A/cm that is limited to of then electric pumping laser threshold ²Loss mechanism taken into account respectively make laser threshold far above 1000A/cm ², this is the highest current density of reporting so far, obtains the support (Tessler, Advanced Materials, P.64, the 1st phase of October in 1998) of organic assembly.

A kind of method of avoiding these difficulties is to use the medium of organic crystal material as laser, replaces noncrystalline matter organic material.The method is used (Schon, Science, Vol.289, on July 28th, 2000) recently, in this paper, use the monocrystalline naphthacene as gain material the making Fabry-Perot resonator.By using the crystalloid naphthacene, can obtain than high current density, can adopt than thick coating (because carrier mobility is about 2cm ²/ (V-s)), and polar molecule absorbs much less.As gain material, then room temperature laser threshold current density is about 1500A/cm with the crystal naphthacene ²

The electric pumping of organic laser alternative is the optical pumping by incoherent light source, as light-emitting diode (LED), its can be inorganic (people such as McGehee, Applied PhysicsLetters, Vol.72, No.13, on March 30th, 1998) or organically (people such as Berggren, U.S. Patent No. 5,881, issue on March 9th, 689,1999).Have this possibility to be since non-pumping organic laser system under optical maser wavelength, when people used matrix-dopant combination as laser medium, emission absorbed recombination loss and reduces a lot (～0.5cm especially ^-1).Even if obtain advantage from these little losses, according to waveguide laser design people such as (, Letters toNature, Vol.389, on October 2nd, 1997) Berggren, the minimum optical pumping threshold value of Bao Dao organic laser is 100W/cm so far ²Because the power density that existing inorganic LED provides has only～20W/cm at the most ²So, must take distinct methods to lean on incoherent light source to help optical pumping.In addition, in order to reduce laser threshold, the gain volume of the laser mechanism that multiselect is used must be minimum, and the micro-cavity laser that forms based on VCSEL satisfies this standard.Employing based on the organic laser cavity of VCSEL should make optical pumping power density threshold value less than 5W/cm ²As a result, actual organic laser device can be by the incoherent light source of all kinds of easy acquisitions, drives as the optical pumping of LED.

The gain media of organic group has some shortcomings, but if laser system is done careful design, shortcoming can overcome.Organic material is faced with the low problem of light and heat damage threshold.The device draw power density should be limited, in case device is caused irreversible damage.In addition, organic material is to the various environmental factor sensitivities as oxygen and water vapour etc.Minimizing generally can improve the useful life of device to the sensitiveness of these variable factors.

One of advantage of the laser-based device of organic group is because gain material amorphous normally, therefore with needing degree of crystallinity the laser of high gain material (organic material or inorganic material) relatively, the manufacturing cost of device is inexpensive.In addition, the laser of making based on organic amorphous gain material can be in the large tracts of land manufacturing, and needn't consider to produce the bulky single crystal material; Therefore, but their reduced scales obtain bigger power output to any size.Because its noncrystal characteristic, the laser of organic group can be created on various matrix, therefore, all for glass, flexible plastics, the such material of Si be may supporting of these devices, thereby very big cost advantage arranged, and for amorphous organic group laser, its available support material has more choice.

Summary of the invention

The present invention is intended to overcome one or several above-mentioned problem.In brief, according to an aspect of the present invention, described organic laser cavity structure comprises:

A) a plurality of organic laser cavity devices, the feature of each organic laser cavity device is:

I) first dielectric lamination can receive and launch pumping light beams and the presetted wavelength scope is reflected into laser;

Ii) organic active region can receive the pumping light beams that launches from first dielectric lamination and also can penetrate light;

Iii) second dielectric lamination can reflect from the pumping light beams and the laser of organic active region emission and penetrate and get back to organic active region, wherein, and the combination results laser of first and second dielectric laminations and organic active region; And

B) above-mentioned a plurality of organic laser cavity device is pressed predetermined arrangement, thereby obtains required laser output, and multiple use is arranged.

An advantage of organic laser cavity device is that these devices can low-cost form the array of each addressable element easily.In this array, each element is can be with adjacent elements irrelevant and can be by independently pumping source (as a LED or LED group) pumping.Array can be one dimension (linearity), also can be two dimension (plane), depends on the purposes requirement.Element in the array also can comprise a plurality of matrix-dopant combination and/or a plurality of cavity configuration, and therefore, two kinds of arrays can produce a plurality of wavelength.In addition, the organic laser cavity device can be processed into the large tracts of land structure, because the same with representational inorganic VCSEL device, monocrystalline is not had the requirement of support.

Description of drawings

Above-mentioned purpose, characteristics and the advantage with other of the present invention just can be clearer as understanding with following specification and accompanying drawing, same part same tag representative as far as possible among each figure, in the accompanying drawing:

Fig. 1 is the diagrammatic cross-sectional side elevation of optical pumping organic laser cavity device;

Fig. 2 is the diagrammatic cross-sectional side elevation of optical pumping organic group vertical cavity laser with organic gain region of periodic structure;

Fig. 3 is the diagrammatic cross-sectional side elevation of the phase-locked organic vertical cavity laser array device of optical pumping two dimension;

Fig. 4 illustrates the organic laser cavity structure of making according to the present invention, has wherein described the organic laser cavity device that one dimension is arranged;

Fig. 5 illustrates the organic laser cavity structure of making according to the present invention, wherein describes the organic laser cavity device of two-dimensional arrangement;

Fig. 6 illustrates the organic laser cavity structure of making according to the present invention, wherein describes the organic laser cavity device of the random arrangement basically of two dimension;

Fig. 7 is the schematic top view of the organic laser cavity structure of making according to the present invention, wherein describes the organic laser cavity device that hexagonal is arranged;

Fig. 8 illustrates the organic laser cavity structure of making according to the present invention, wherein describes the organic laser cavity device that two-dimentional Baeyer figure arranges;

Fig. 9 illustrates according to the present invention the organic laser cavity structure of making, and wherein describes organic laser cavity device one dimension or linear arrangement and describes spatial relationship between each organic laser cavity device;

Figure 10 describes an organic laser cavity structure, has wherein made up the subarray of the organic laser cavity device of different wave length;

Figure 11 illustrates the organic laser cavity structure of making according to the present invention, and wherein textural association is on flexible support;

Figure 12 illustrates the organic laser cavity structure of making according to the present invention, and wherein light source shines organic laser cavity with the light radiation that changes in time uniformly; And

The light that the organic laser cavity structure that Figure 13 describes to make according to the present invention sends is penetrated the method on target.

Embodiment

For the ease of understanding, each is schemed common element and is marked with identical label as far as possible.

In the present invention, for simplicity, the technical terms of describing vertical cavity organic laser device VCSEL can use with " organic laser cavity device " exchange.Organic laser cavity structure is made the large tracts of land structure and is done optical pumping with LED.

Fig. 1 illustrates the sketch of vertical cavity organic laser device 10.Matrix 20 both can printing opacity also can be light tight, depend on the anticipated orientation of optical pumping and laser emission.Printing opacity matrix 20 can be transparent glass, plastics or other transparent materials, as sapphire.On the other hand, opaque substrate includes, but not limited to semi-conducting material (as silicon) or ceramic material, can be used on the occasion that the existing optical pumping in same surface has radiation again.Dielectric lamination 30 under deposition one deck on the matrix is followed by organic active region 40.Deposition goes up medium electricity lamination 50 then.Pumping light beams 60 optical pumping vertical cavity organic laser devices 10.The light source of pumping light beams 60 can be an incoherent light source, the radiation of Tathagata self-luminous diode (LED).Perhaps, pumping light beams 60 can be risen in the coherent laser source.Fig. 1 illustrates the laser emission 70 from last dielectric lamination 50.Perhaps, laser aid can be by last dielectric lamination 50 by optical pumping, and laser passes matrix 20 emissions by means of the suitable design of dielectric lamination reflectivity simultaneously.At opaque substrate, under the situation as silicon, dielectric lamination 50 is enough passed in optical pumping and laser emission.

The preferred material of organic active region 40 is organic substrate-dopant combinations of small-molecular weight, usually by high vacuum heat sublimation deposition.The combination of these matrix-dopant is very beneficial because they to the non-pumping that gain media causes disperse/absorption loss is very little.Organic molecule is the small-molecular weight molecule preferably, because vacuum-deposited material can deposit more evenly than the polymeric material of spin coating.The host material that the present invention uses is preferably selected like this, makes it also a big chunk of its excitation energy can be transferred to dopant material by your energy of Foster by good absorption pumping light beams 60.The notion that your energy of Foster shifts is that the professional and technical personnel is familiar with, and the radiationless energy that it relates between matrix and the doping molecule shifts.An example of the useful matrix of red light radiation laser-dopant combination is, (Alq) make matrix with three aluminium (oxine), with [4-(cyanogen methylene)-2-trichlorophenol, 2,4,6,-T-isobutyl group-6-(1,1,7,7 ,-tetramethyl julolidine-9-eneyne hydrocarbon)-4H-pyrantin (DCJTB) makes dopant (volume fraction is 1%).Other matrix-dopant combination can be used for other wavelength emission bodies.For example, in green glow, a kind of useful combination is that Alq makes matrix, [10-(2-[4-morpholinodithio base)-2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-1H, 5H, 11H-[1] chromene [6,7,8-ij] quinolizine-11-ketone] (C545T) make dopant (volume fraction is 0.5%).Other organic gain material can be a polymer, as polyphenylene ethylene support derivative, dialkoxy polyphenylene butenylene, poly-to benzene derivative, and poly-fluorene derivative, these are common U.S. Patent No.s 6,194 of transferring the possession of and issuing February 27 calendar year 2001 of people such as Wolk, the content of 119B1, for reference.40 purposes of organic active region is to receive pumping light beams 60 and the radiation laser that transmission comes.

Lower and upper dielectric lamination 30 and 50 preferably deposits from traditional means of electron beam deposition respectively, and comprises the dielectric material of alternately high and low refractive index respectively, as TiO ₂And SiO ₂Other materials is as the Ta of high refractive index layer ₂O ₅, also can adopt.Following medium electricity lamination 30 is in nearly 240 ℃ of temperature deposit.In last dielectric lamination 50 deposition process, temperature remains on about 70 ℃, in order to avoid melt organic active material.In another embodiment of the present invention, last dielectric lamination can replace with the reflective speculum surface layer of deposition one deck.Its typical metal is silver and aluminium, and reflection coefficient is greater than 90%.In this embodiment, pumping light beams 60 and laser emission 70 are passed matrix 20 and are extended out.Last dielectric lamination 50 and following dielectric lamination 30 reflect according to the laser of the required radiation wavelength of laser cavity 10 to predetermined wavelength range.

The application of the vertical microcavity of high fineness allows under very low threshold value (less than 0.1W/cm ²Power density) laser transition takes place.This low threshold value makes incoherent light source can be used for pumping, replaces the focusing output radiation of laser diode, and the latter is that other laser systems are commonly used.One example of pump light source is ultraviolet light-emitting diode UV LED, or the array of UV LED, and originating from Cree company (is XBRIGHT specifically ^900 Ultra Violet Power Chip ^LED).The light wave of these light emitted, wherein cardiac wave is about and is 405nm, and it is reported that the wafer form can produce 20W/cm ²Power density.Therefore, even take into account because of device package and the big radiation profiles angle of LED, cause the restriction to utilance, what the brightness of LED also was enough to reach above-mentioned laser threshold much doubly comes the pumping laser cavity.

The active region structure of vertical cavity organic laser device 80 shown in Figure 2 can further be improved the efficient of laser.Organic active region 40 (being shown in Fig. 1) comprises the gain region 100 of one or several arranged spaced and in organic spacer layer 110 (see figure 2) of its both sides, they are arranged like this, and each gain region 100 is alignd with device electromagnetic field standing wave antinode 103.Fig. 2 illustrates the static electromagnetic field graph 120 of laser in organic active region 40.Since the strongest in antinode 103 places stimulated radiation, can ignore at node 105 places of electromagnetic field, thereby form active region shown in Figure 2 40 advantageous particularlies.Stimulated emission or spontaneous radiation can not take place and neither absorb laser emission 70 wavelength basically not absorb pumping light beams 60 wavelength in organic spacer layer 110 yet.One example of wall 110 is organic materials 1,1-pair-(two (4-the tolyl)-aminobenzenes of 4-)-cyclic ethylene (TAPC).TAPC is good interval insulant, because the energy that it neither absorbs laser emission 70 does not basically absorb the energy of pumping light beams 60 yet, in addition, its refraction is a little less than most of organic substrate material.The difference of refractive index is useful, because help to make the overlapping maximization between the gain region 100 of electromagnetic field antinode and cycle configuration like this.As the relevant following finding of discussing of the present invention, the gain region 100 of application cycle configuration and bring higher power conversion coefficient and lower undesirable spontaneous radiation without the monoblock gain region.The position of the gain region 100 of cycle configuration determines people such as (, IEEE Journal of QuantumElectronics, Vol.25, No.6, in June, 1989) Corzine by available optics standard matrix method.In order to obtain better effect, the thickness of cycle configuration gain region 100 must to avoid undesirable spontaneous radiation below 50nm.

Using phase-locked organic laser array device 190 shown in Figure 3 can increase the area of laser, keeps certain spatial coherence simultaneously.In order to form two-dimentional phase-locked organic laser array device 190, need on the VCSEL surface fixing by pixel between the zone 210 organic laser cavity devices 200 that separate.In order to reach phase-locked, be preferably in and exchange intensity and phase information between the organic laser cavity device 200.For this reason, can be by making inner refractive index or gain guided reducing, as adjust the reflectivity of a minute surface, laser emission is restricted to device region more weakly realizes.In a preferred embodiment, the photolithography technology of application standard and etching technique patterning and form etching region 220 in following dielectric lamination 30 influences the adjustment of reflectivity, thereby at the two-dimensional arraies of dielectric lamination 30 surface formation cylinders 211 down.The remainder of organic laser micro chamber device structure is by on the above-mentioned following medium electricity lamination 30 that is deposited on patterning.In a preferred embodiment, the laser pixel is circular, but also can be other shapes, as rectangle.Spacing between pixel is 0.25-4 μ m.Also will do the lock phase array operation when spacing is big between pixel, but this will cause utilizing of optical pumping energy insufficient, form etching region 220, etch depth is 200-1000nm preferably.In dielectric lamination 30 under just in time outside odd-level, etching into, just can in etching region, make the longitudinal mode wavelength that big displacement takes place away from the gain media peak.Therefore, laser action is hindered, and also greatly reduction of spontaneous radiation in the zone 210 between pixel.The final result that etching region 220 forms is that laser emission is confined to organic laser cavity device 200, and laser is not launched in zone 210 between pixel, the relevant phase-locked laser of phase-locked organic laser array device 190 emissions.

Organic laser cavity structure is that a plurality of organic laser cavity devices 200 perform the device of arranging in advance.Fig. 4 illustrates the organic laser cavity structure 221 of one dimension.The one dimension organic laser cavity structure has a plurality of organic laser cavity devices 200 of linear arrangement.Should be understood that the organic laser cavity device of being made up of the part of structure 200 can have the different shape that is different from described circle, as rectangle, triangle etc.Fig. 4 is an example of organic laser cavity structure, and wherein the arrangement of organic laser cavity device 200 is geometric figure regulations.The meaning of geometric figure regulation is that pattern repeats regularly.At this moment, single organic laser cavity device 200 repeats along the length of one dimension organic laser cavity structure 221.

Fig. 5 illustrates the organic laser cavity structure of making according to the present invention, wherein describes the two-dimensional arrangement of organic laser cavity device.A kind of so two-dimentional organic laser cavity structure 222 is by the two-dimentional pattern of each organic laser cavity device 200 with rule is assembled.The making of these devices is that the professional and technical personnel is familiar with.Zone 210 is made up of the laser part of not launching of the structure that separates each organic laser cavity device 200 usually between pixel.

The such one dimension organic laser cavity structure 221 and the purposes of two-dimentional organic laser cavity structure 222 comprise the radiation demonstration etc. of photosensitive printing technology, line and the face of line and face.Luminous organic laser cavity device 200 is reappeared regularly produce with this manufacturing process and be used to the exposure device that prints and show.In this structure, the interval of organic laser cavity device 200 requires decision by the definition of this purposes.For example, in printer, organic laser apparatus 200 can be round, and its diameter is about the 20-50 micron, and the size in the interval of this organic laser cavity device 200 (zone 210 between pixel) is also suitable therewith.Although not specified (NS), in a kind of configuration, the diameter of organic laser cavity device 200 changes in array, and this configuration also is regarded as one of the present invention

Embodiment.

Fig. 6 illustrates the organic laser cavity structure of making according to the present invention, wherein describes the two-dimentional organic laser cavity structure 223 of random arrangement basically that can be two-dimentional, and contained organic laser apparatus 200 is pressed the device manufacturing of describing among Fig. 1-3.This two-dimentional organic laser cavity structure 223 substantially at random preferably is considered the single random arrangement of organic laser cavity device 200 in the plane.Although not specified (NS), the diameter of organic laser cavity device 200 also is considered one embodiment of the invention with the scheme that random fashion basically changes in array.At random two-dimentional organic laser cavity structure 223 basically like this has application in a plurality of fields, comprises that the encryption of information and image show.

Fig. 7 is the schematic top view of the organic laser cavity structure of making according to the present invention, the organic laser cavity device of the scheme of hexagonal shown in it.The organic laser cavity device 200 that this hexagon two dimension organic laser cavity mechanism 224 comprises produces in the planes spacing array the most closely.The advantage of this array is with high power density output light radiation.The spacing that the acquisition of high power density comes from the hexagon scheme is characteristics the most closely.Fig. 7 illustrates three luminous organic laser cavity devices 225.Other packing schemes also can.

Fig. 8 illustrates a kind of organic laser cavity structure of making according to the present invention, has wherein described the two-dimentional Bayer pattern of organic laser cavity device 226 and has arranged.This Baeyer two dimension organic laser cavity structure 226 can produce the multi-wavelength light radiation, and wherein Laser emission is designed to the ruddiness (R) at spectrum, green glow (G), and blue light (B) district produces discrete wavelength.The red light district of spectrum is about as much as the wave-length coverage of 600-650nm.The green Region of spectrum is equivalent to the 500-550nm wave-length coverage, and the blue light region of spectrum is equivalent to the 450-500nm wave-length coverage.During organic laser cavity device 200 correct design, the light radiation wavelength can be at whole limit of visible spectrum (about 450-700nm).Should be understood that the pumping light beams of different wave length can be used to produce the output radiation of basic single wavelength.Its realization can be selected the material of organic active region 40 by the material and the thickness of dielectric lamination under the correct design 30 and last dielectric lamination 50, and the size of organic laser cavity device 200.On the other hand, the pumping light beams of single wavelength can produce the different basically output radiation of a plurality of wavelength.In addition, its realization also can be by the various organic laser cavity device 200 of design in this structure.Will be further appreciated that any organic laser cavity structure can both design to be processed into can produce the multi-wavelength light radiation that is suitable for present purposes.Under the situation of Baeyer two dimension organic laser cavity structure 226, the ratio of green-light radiation passage and ruddiness and blue ray radiation passage is 2: 1.This structure helps being applied to requiring the pixel of the photodetector array of the CDD of standard is done direct man-to-man irradiation.The Baeyer structure is applied to color filtering array usually, for CDD and CMOS photo-detector (not shown) provide colour filter sensitivity.

Fig. 9 illustrates a kind of organic laser cavity structure of making according to the present invention, has wherein described the one dimension or the linear arrangement of organic laser cavity device 200 and spatial relationship between each organic laser cavity device 200 is shown.Spatial relationship is defined as, the diameter of d=organic laser cavity device 200, the centre-to-centre spacing of being separated by between the l=organic laser cavity device 200.These two parameters can be used to control the radiation feature of laser output.For example, for the organic laser cavity structure that the organic laser cavity device 200 that is had basic identical wavelength output by plan constitutes, the phase-locked parameter d and the l of depending on especially of organic laser cavity device 200.Produce a preferred embodiment of phase-locked laser output, its d=3-5 μ m, l=3.25-9 μ m.As previously mentioned, the spacing of organic laser cavity device 200 is bigger, then because the area between the organic laser cavity device 200 increases, causes phase-locked loss and light radiation utilance to descend.This phase-locked major advantage is that it causes the coherent superposition of the optical energy of independent organic laser cavity device.Can improve the power output of organic laser cavity structure like this.In some applications, need to have incoherence completely between the organic laser cavity device 200, each organic laser cavity device 200 plays separate lasers.Like this, can make laser emission phase place difference from organic laser cavity device 200.At this moment, can make l＞9 μ m, d=3-5 μ m just can make each organic laser cavity device 200 uncorrelated.Certainly, a lot of other combinations that should be understood that these parameters also can produce required output.Equally, the adjustment of degree of coherence is not limited to the one-dimentional structure that the professional and technical personnel knows between each unit of such organic laser cavity structure.In the organic laser cavity structure, the unit of big array produces phase-locked laser output minor structure, and each minor structure is independently of one another, and this organic laser cavity structure also is one embodiment of the invention.This layout helps to change simultaneously the organic laser cavity structure of output, optimizes luminous power and resolution under the various uses.In addition, although what describe in Fig. 9 is circular organic laser cavity device 200, other shapes also can and more favourable in some occasion.For example, people such as Wilmsen show Vertical-Cavity Surface-Emitting Lasers (Vcsel) book (Cambridge University Press, calendar year 2001) speak of in, the rectangle organic laser cavity device 200 that size is suitable can be used for producing the polarization laser radiation from organic laser cavity structure.

The minor structure of the organic laser cavity device of different wave length is housed in the described organic laser cavity structure of Figure 10.Such multi-wavelength organic laser cavity structure 227 has 3 * 3 red (r), green (g), the minor structure (not shown) in blue (b) light district.As previously mentioned, these minor structures mutual whether phase-locked depends on application need.It is phase-locked to change distance parameter may command shown in Figure 9.

Figure 11 illustrates a kind of organic laser cavity structure of making according to the present invention, and this structure is contained on the flexible matrix, can make flexible organic laser cavity structure, because as mentioned above, organic laser cavity is not tight to the requirement of matrix.Flexible like this organic laser cavity structure 228 has a plurality of advantages, i.e. lightweight construction can be done to such an extent that meet various not plane surfaces.In addition, the spatial relationship between each organic laser cavity device 200 can change by this device is created on the flexible matrix.Like this, much the spatial relationship of organic laser cavity device just can change mutually.The flexible matrix that stretches can be used to change the coherence length of organic laser cavity device 200.Any feature (multi-wavelength, unit coherence control etc.) that should be understood that organic laser cavity structure can be by realizing with combining of flexible organic laser cavity structure 228.

Figure 12 illustrates a kind of organic laser cavity structure of making according to the present invention.Wherein, light source 229 (as a plurality of light-emitting diodes) irradiation organic laser cavity structure, its light output and time correlation.Light 230 is penetrated on organic laser cavity structure 231 so that this laser cavity of optical excitation.The organic laser cavity structure 231 of this and time correlation can be realized by a lot of approach.In this example, organic optical cavity structure 231 of the time correlation of light 230 optical pumpings rotation.Organic laser cavity structure is made the organic laser cavity device 200 that distributes unevenly on stromal surface.The rotation of organic laser cavity structure 231 produces and irrelevant output radiation of time.Equally, fixing organic laser cavity structure 231 can be done optical pumping by time dependent non-homogeneous light source, also can produce such output radiation.

In addition, light source 229 can comprise the pumping light beams of the single wavelength of the laser emission that produces basic single wavelength; Or the pumping light beams of the basic different wave length of generation single wavelength laser emission; Or produce the pumping light beams of the basic different wave length of a plurality of basic different wave length radiation.

Figure 13 describes the method that light can be penetrated from photon source with calcspar, and this photon source is mapped to optical pumping on the target to organic laser cavity structure and with laser emission.Light produced in the 232nd step of the means that light activated organic laser cavity structure is provided.Various possible light sources can be used for the pumping organic laser cavity structure; This is owing to the low cause of power threshold from organic laser cavity device 200 emission laser.For example, row's light-emitting diode (inorganic or organic) can apply to this capacity.Light was mapped on the organic laser cavity structure in the 233rd step.There is multiple mode to be used for launching and influencing pumping light, for example available lens and speculum.These Optical devices are known as initiatively or passive lens, and filter and reflective mirror are the examples of passive optical component.They can be used to change the spatial distribution of pumping light, light intensity, polarization etc.The active optics element comprises various optical modulators (electric light, acousto-optic), and they can be used to change incident pumping light intensity, time for exposure, polarization, or spatial distribution.Receive pumping light and produce laser according to incident pumping light at the organic laser cavity structure described in the 234th step.From the appropriate mode of the laser of the 234th step input, as described in above each embodiment, by the properties specify of organic laser cavity structure.The laser that produces in the 234th step is used the parts directive target in the 235th step.The same with the 233rd step, these parts can comprise lens, reflective mirror, modulator etc., and they are used to change intensity, the time for exposure of laser, polarization and spatial distribution.In addition, the phase place of the light of organic laser cavity structure emission can be modulated in the 234th step, thereby influence the phase place of the output beam of directive target.The 235th step provided and makes the organic laser cavity structure output radiation aim at the instrument of its predeterminated target and control.The output radiation of organic laser cavity structure can comprise the light radiation of single wavelength and multi-wavelength.The 236th step comprised the various forms of target own.These targets can comprise the picture light-sensitive material, based on the receiver or the such object of wave detector of the communication usefulness of light radiation; Perhaps in order to mark on the object, for scanning object obtaining its bulk, in order to obtain for the space encoding information of identifying usefulness, or when doing the object spectrum analysis position on the object.Light-sensitive material can comprise photographic material or electrofax material, is used for ablation and receives the pigment on the material or the receiving layer of other materials.

Organic laser cavity structure, wherein, required laser output comprises the laser output of each each device of organic laser cavity that phase place is different.

Organic laser cavity structure, wherein, required laser output comprises the laser output of essentially identical each the organic laser cavity device of phase place.

Organic laser cavity structure, wherein, required laser output comprises the laser output of this each identical organic laser cavity device of polarisation based.

Organic laser cavity structure, wherein, required laser output comprises the laser output of this each different organic laser cavity device of polarisation based.

Organic laser cavity structure, wherein, predetermined layout is to extract the combination of forming out from geometrical arrangements, phase place layout, wavelength arrangement, polarization layout and spatial placement.

Organic laser cavity structure, wherein, predetermined arrangement is the plane.

Organic laser cavity structure, wherein, predetermined arrangement is an on-plane surface.

Organic laser cavity structure, wherein, single wavelength pumping light beams produces the output of basic different wave length.

Organic laser cavity structure, wherein, single wavelength pumping light beams produces single wavelength laser output basically.

Organic laser cavity structure, wherein, basic different wave length pumping light beams produces single wavelength laser output.

Organic laser cavity structure, wherein, basic different wave length pumping light beams produces a plurality of basic different wave length outputs.

Organic laser cavity structure, wherein, required laser output is relevant with the time with the relation of pumping light beams.

Organic laser cavity structure, wherein, the spatial relationship between each organic laser cavity device changes.

Organic laser cavity structure, wherein, predetermined arrangement is formed on the flexible matrix.

A kind of with the lead method of specified target position of light radiation, comprise following a few step:

A) provide a kind of organic laser cavity structure, this structure comprises: a plurality of with the organic laser cavity device of a layout in the one or more dimensions spatial placement, the feature of each organic laser cavity device is that first dielectric lamination is used for reception and transmission pumping light beams and is reflected into laser on predetermined wavelength range; Organic active region is used to receive the pumping light beams that transmits from first dielectric lamination and launches laser; Organic active region is got back in pumping light beams and laser-bounce that second dielectric lamination is used for organic active region is transmitted, and wherein, first and second dielectric laminations produce laser with combining of organic active region; And a plurality of organic laser cavity devices are pressed predetermined arrangement, thereby obtain required light radiation; And

B) with required light radiation guiding specified target position.

With the lead method of specified target position of light radiation, wherein, light radiation penetrated to be included on the object at ad-hoc location mark.

With the lead method of specified target position of light radiation, also comprise making the light-sensitive material exposure.

With the lead method of specified target position of light radiation, also comprise the step of realization based on the communication of light radiation.

With the lead method of specified target position of light radiation, comprise object scanning to obtain its bulk.

With the lead method of specified target position of light radiation, comprise object is carried out spectrum analysis.

With the lead method of specified target position of light radiation, comprise information is encoded for discriminating.

A) provide a kind of organic laser cavity structure, this structure comprises: a plurality of with the organic laser cavity device of a kind of layout in the one or more dimensions spatial placement, the feature of each organic laser cavity device is that first dielectric lamination is used for reception and transmission pumping light beams and is reflected into laser on predetermined wavelength range; Organic active region is used to receive pumping light beams and the emission laser that transmits from first dielectric lamination; Organic active region is got back in pumping light beams and laser-bounce that second dielectric lamination is used for organic active region is transmitted, and wherein, first and second dielectric laminations produce laser with combining of organic active region; And a plurality of organic laser cavity devices are by predetermined arrangement, thereby the required light radiation of acquisition multi-wavelength; And

B) will have the required light radiation guiding specified target position of multi-wavelength.

With the lead method of specified target position of light radiation, wherein, the light radiation specified target position that leads is included on the object and marks.

With the lead method of specified target position of light radiation, comprise to object scanning, to obtain its bulk.

With the lead method of specified target position of light radiation, comprise for information is encoded for discriminating.

A) provide a kind of organic laser cavity structure, this structure comprises: a plurality of with the organic laser cavity device of a kind of layout in the one or more dimensions spatial placement, the feature of each organic laser cavity device is that first dielectric lamination is used for receiving and transmission pumping light beams and reflection or laser on predetermined wavelength range; Organic active region is used to receive pumping light beams and the emission laser that transmits from first dielectric lamination; Organic active region is got back in pumping light beams and laser-bounce that second dielectric lamination is used for organic active region is transmitted, and wherein, first and second dielectric laminations produce laser with combining of organic active region; And a plurality of organic active cavity devices are pressed predetermined arrangement, thereby obtain the required light radiation of a plurality of outs of phase; And

B) will have the required light radiation guiding specified target position of a plurality of outs of phase.

With the lead method of specified target position of light radiation, also comprise the communication steps of realization based on light radiation.

Method at ad-hoc location is penetrated in light radiation, comprise information is encoded for discriminating.

A) provide a kind of organic laser cavity structure, this structure comprises: a plurality of with the organic laser cavity device of a kind of layout in the one or more dimensions spatial placement, each device is arranged at interval with the spatial relationship that changes, the feature of each organic laser cavity device is that first dielectric lamination is used for reception and transmission pumping light beams and is reflected into laser on predetermined wavelength range; Organic active region is used to receive the pumping light beams that transmits from first dielectric lamination and launches laser; Organic active region is got back in pumping light beams and laser-bounce that second dielectric lamination is used for organic active region is transmitted, and wherein, wherein, first and second dielectric laminations produce laser with combining of organic active region; And a plurality of organic active cavity devices are pressed predetermined arrangement, thereby obtain required light radiation; And

B) with required light radiation guiding specified target position.

A) provide organic laser cavity structure, this structure comprises: a plurality of with the organic laser cavity device of a kind of layout in the one or more dimensions spatial placement, the feature of each organic laser cavity device is that first dielectric lamination is used for reception and transmission pumping light beams and is reflected into laser on predetermined wavelength range; Organic active region is used to receive the pumping light beams that transmits from first dielectric lamination; Organic active region is got back in pumping light beams and laser-bounce that second dielectric lamination is used for organic active region is transmitted, and wherein, first and second dielectric laminations produce laser with combining of organic active region; And a plurality of organic laser cavity devices are pressed predetermined arrangement, thereby obtain required light radiation; And

B) by exciting one or more organic laser cavity devices selectively, with required light radiation guiding specified target position.

Claims

1. an organic laser cavity structure is characterized in that, comprises

I) first dielectric lamination is used for receiving and becomes laser with the transmission pumping light beams and in a predetermined wavelength range internal reflection;

Ii) organic active region is used to receive the pumping light beams that transmits from first dielectric lamination and sends laser;

Iii) organic active region is got back in second dielectric lamination pumping light beams and the laser-bounce that are used for transmitting from organic active region, and wherein, first and second dielectric laminations can produce laser with combining of organic active region; And

B) a plurality of organic laser cavity devices are exported thereby can obtain required laser by predetermined arrangement.

2. organic laser cavity structure as claimed in claim 1 is characterized in that layout is a geometric specification.

3. organic laser cavity structure as claimed in claim 2 is characterized in that layout is a linear arrangement.

4. organic laser cavity structure as claimed in claim 2 is characterized in that layout is a two-dimensional arrangement.

5. organic laser cavity structure as claimed in claim 2 is characterized in that, layout is a random arrangement basically.

6. organic laser cavity structure as claimed in claim 2 is characterized in that, layout is the hexagon two-dimensional arrangement.

7. organic laser cavity structure as claimed in claim 2 is characterized in that, layout is that Bayer pattern is arranged.

8. organic laser cavity structure as claimed in claim 1 is characterized in that, arranges to be limited by the spatial relationship between a plurality of organic laser cavity devices.

9. organic laser cavity structure as claimed in claim 8 is characterized in that spatial relationship is fixed.

10. organic laser cavity structure as claimed in claim 8 is characterized in that spatial relationship is variable.

11. organic laser cavity structure as claimed in claim 1 is characterized in that, required laser output comprises the different laser radiation wavelength that comes from a plurality of organic laser cavity devices.

12. organic laser cavity structure as claimed in claim 1 is characterized in that, required laser output comprises the essentially identical laser radiation wavelength that comes from a plurality of organic laser cavity devices.