CN202533371U - Deep ultraviolet (DUV) laser Raman spectrometer - Google Patents
Deep ultraviolet (DUV) laser Raman spectrometer Download PDFInfo
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- CN202533371U CN202533371U CN2012201210906U CN201220121090U CN202533371U CN 202533371 U CN202533371 U CN 202533371U CN 2012201210906 U CN2012201210906 U CN 2012201210906U CN 201220121090 U CN201220121090 U CN 201220121090U CN 202533371 U CN202533371 U CN 202533371U
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Abstract
The utility model relates to the field of Raman spectrometers and discloses a deep ultraviolet (DUV) laser Raman spectrometer. The DUV laser Raman spectrometer disclosed by the utility model comprises a DUV laser emitter, an outer light path, a chromatic dispersion system, a reception system and an information processing system, wherein the DUV laser emitter, the outer light path, the chromatic dispersion system, the reception system and the information processing system are sequentially connected with one another; the wavelength of the laser emitted by the DUV laser emitter is 210-230 nm; a light splitter adopted by the front end of the outer light path is a short-pass light filter; and the chromatic dispersion system adopts an adjustable light filter. The DUV laser Raman spectrometer disclosed by the utility model has the characteristics of high sensitivity, big lighting point, high resolution, and no damage to eyesight.
Description
Technical field
The utility model relates to and draws general spectrometer art, relates in particular to a kind of deep ultraviolet laser and draws general spectrometer.
Background technology
Raman spectrum (Raman spectra) is a kind of scattering spectrum.Nineteen twenty-eight C.V. Raman is found when doing experiment, is changed by the light occurrence frequency of molecular scattering when light passes transparent medium, and this phenomenon is referred to as Raman scattering.Also be observed in the Soviet Union and France the same year after a while.In the scattering spectrum of transparent medium, frequency is called Rayleigh scattering with incident light frequency υ 0 identical composition; Spectral line or bands of a spectrum υ 0 ± υ 1 that frequency is symmetrically distributed in υ 0 both sides are Raman spectrum.The Raman spectrum analysis method is based on the peculiar effect of Raman scattering, the scattering spectrum different with the incident light frequency is analyzed obtaining molecular vibration, rotation aspect information, and be applied to a kind of analytical approach of molecular structure research.Then just there has been the birth of Raman spectrometer in later stage; It is to be used for the rotation spectrum and the vibrational spectra of detecting material molecule; Because rotation spectrum and vibrational spectra are equivalent to the fingerprint of material, thereby can differentiate different material compositions accurately through the detection of Raman spectrometer, higher than the accuracy of general wide range spectrometer; Range of application spreads all over every field such as chemistry, physics, biology and medical science, for pure qualitative analysis, height quantitative test and mensuration molecular structure very big value is arranged all.But its insufficient sensitivity is high, for the scattering cross-section of detecting material 10
-27Below, then survey less than, promptly can only detect the observable milligram level material of eyes, then can't discern for the invisible micro substance of eyes.Simultaneously, for visible light and near ultraviolet laser owing to can not fluorescence be separated, thereby can not accurately discern; Though near infrared light can roughly separate fluorescence, still is interfered, make signal to noise ratio (S/N ratio) reduce, and visible light, near ultraviolet laser and near infrared light can be not the alternative of Raman spectrometer probe source through eyeball damage retina.In addition, if in the open air or the interference of indoor environment light (light, sunshine etc.) can not use.Even use, also must be to observing the cavity shading.What present Raman spectrometer great majority adopted is the confocal coaxial system of microscopic structure, can't filter fully fluorescence, can produce very strong end light.It uses the slit below 0.1 millimeter to carry out light-splitting processing with the reflection grating of using big F number (being generally F/4); Use the not high CCD array of sensitivity to receive then; Therefore existing Raman spectrometer several microns the object that can only throw light on; Survey several mm distance, and volume is also very big.Because existing Raman spectrometer does not have imaging system, can't observe and find the target that will survey.So, in order to observe a bigger a little zone, just must use special scanning platform, again because lighting point is very little, then sweep velocity can be very slow then.So there is following shortcoming in existing Raman spectrometer:
(1) sensitivity is low;
(2) lighting point is little;
(3) fluorescence is inseparable;
(4) target cannot see;
(5) damage eye eyesight easily.
Summary of the invention
The purpose of the utility model embodiment is: a kind of deep ultraviolet laser Raman spectrometer is provided, have highly sensitive, lighting point is big, resolution is high, do not damage the characteristics of eye eyesight.
A kind of deep ultraviolet laser Raman spectrometer that the utility model embodiment provides comprises deep ultraviolet laser transmitter, outer light path, dispersion system, receiving system and information handling system; Said deep ultraviolet laser transmitter, said outer light path, said dispersion system, said receiving system are connected with said information receiving system successively; The Wavelength of Laser that said deep ultraviolet laser transmitter is launched is in 210 ~ 230 nanometer range; The optical splitter that the front end of said outer light path adopts is short pass filter; Said dispersion system adopts adjustable optical filter.
Optional, said adjustable optical filter is narrow band pass filter, acousto-optic tunable filter or liquid crystal adjustable optical filter.
Optional, the relaying light path of said outer light path is a collimated light path.
Optional, the front end of the optical splitter in the said outer light path is provided with zoom lens.
Optional, the object lens in the said outer light path are reflective or projection-type.
Optional, said receiving system comprises CCD imaging system and spectral detector; The point-to-point coaxial fusion of said CCD imaging system and said spectral detector.
Optional, said spectral detector is photomultiplier or single snowslide pipe.
Optional, said information handling system is the touch screen-device of computing machine, computer, band central processing unit, in the smart mobile phone any one.
The technical scheme of the utility model embodiment is that the technician is directed against the shortcoming that existing Raman spectrometer exists, and progressively improves and comes.As shown in Figure 1, be the off-axis illumination of early stage design, use be 90 of F/1.3
0The wavelength of transmission grating is the near infrared Raman spectrometer of 785 nanometers; System receives only the Raman spectrum that excites; And laser background great majority can reflect away to the minute surface direction; Thereby the CCD imaging system can be seen invisible fingerprint, but finally also can only throw light on 300 microns the zone with survey 30 mm distance.Although the zone of lighting point and detection range all promote to some extent, still can't satisfy the needs of existing high-tech area.So; Through continuous experiment and improvement, mention unique way of Raman sensitivity, must develop to the shortwave direction; Because the biquadratic of sensitivity and wavelength is inversely proportional to; Wavelength is short more, and sensitivity is high more, and for example adopting wavelength is that the light source of 224 nanometers is that the sensitivity of the light source of 785 nanometers will exceed 151 times than adopting wavelength.For this reason, the medium ultraviolet Raman spectrum of design wavelength about 260 nanometers arranged also, as shown in Figure 2; It is for the Raman spectrometer of remote probe target; What adopt is that wavelength is the laser of 266 nanometers or 262 nanometers, and it can detect 0.1 milligram explosive in 0.1 second in outdoor 30 meters external applications, and is safe to eyes; But because 0.1 millimeter slit and the grating of F/4 and the telescope of long-focus also have only 2 centimetres at 30 meters luminous points.Therefore, scan 1 kilometer long, 2 meters wide road surfaces are removed to seek transient target and must be taken several months time, and this uses with the field afield is unpractiaca.Then the technician is through having made corresponding improvement to the wavelength of light source, outer light path, dispersion system; Promptly just be able to produce the described deep ultraviolet laser Raman spectrometer of the utility model; It comprises deep ultraviolet laser transmitter, outer light path, dispersion system, receiving system and information handling system, and said deep ultraviolet laser transmitter, said relaying light path, said dispersion system, said receiving system are connected with said information receiving system successively; Said receiving system comprises CCD imaging system and spectral detector.Wherein, The Wavelength of Laser that said deep ultraviolet laser transmitter is launched is controlled in 210 ~ 230 nanometer range; And the front end of said outer light path adopts short pass filter as optical splitter; Visible light that wavelength is long and short Raman light, fluorescence separately are about to VISIBLE LIGHT EMISSION and go out, through Raman light and fluorescence.Naturally the visible light that reflects from measured target is received by the CCD array of CCD imaging system, thereby sees the zone outside the laser radiation luminous point, finds easily with observation post and surveys target.Because Ultra-Violet Laser is sightless, the luminous point size has only several microns again, can not form images again, and the personnel that then survey can't know whether laser shines on the required target of looking for.In order to survey big target, must cancel slit and grating, necessary again simultaneously beam split; Otherwise can not obtain Raman spectrum; Thereby in dispersion system, adopt adjustable optical filter, said adjustable optical filter can be an acousto-optic tunable filter, also can be the liquid crystal adjustable optical filter.Let the light of different wave length pass through one by one, let highly sensitive single snowslide pipe or photomultiplier receive one by one then, and form spectrum.Because the high hundreds of times of ccd array that the remolding sensitivity of snowslide pipe and photomultiplier is commonly used, detection sensitivity can reach parts per billion, promptly about PPB nanogram level.When choosing adjustable optical filter, can have two kinds simultaneously, a kind of is the narrow band pass filter rotational angle of specific wavelength, then sees through wavelength and can think the shortwave direction with angular movement, and another kind is acousto-optic tunable filter or liquid crystal adjustable optical filter.Outside in the light path, adopt zoom lens at the front end of optical splitter,, can be so that luminous point size and distance be adjustable, the relaying light path of said outer light path is a collimated light path simultaneously, the then focus point of the said spectral detector influence of not focused.The point-to-point coaxial fusion of said CCD imaging system and said spectral detector has overcome confirming that existing Raman spectrometer can't observed object.Object lens in the said outer light path are emission-type or projection-type.Said information handling system can be the touch screen-device of computing machine, computer, band central processing unit, also can be smart mobile phone.In sum; The described deep ultraviolet laser Raman spectrometer of the utility model; Overcome that existing Raman spectrometer sensitivity is low, lighting point is little, fluorescence is inseparable, target cannot see and damaged confirming of eye eyesight easily; And can use the existing computer that can reach conveniently, smart mobile phone as information handling system, cost is also with regard to corresponding reduction.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the application's a part, does not constitute the improper qualification to the utility model, in the accompanying drawings:
The Raman of a kind of off-axis illumination that Fig. 1 provides for the utility model embodiment 1 draws the index path of general appearance;
The index path of the Raman spectrometer of a kind of remote probe that Fig. 2 provides for the utility model embodiment 1;
A kind of deep ultraviolet laser Raman that Fig. 3 provides for the utility model embodiment 1 draws the theory diagram of general appearance;
A kind of deep ultraviolet laser Raman that Fig. 4 provides for the utility model embodiment 1 draws the closely index path of general appearance;
A kind of deep ultraviolet laser Raman that Fig. 5 provides for the utility model embodiment 2 draws the remote index path of general appearance.
Embodiment
To combine accompanying drawing and specific embodiment to specify the utility model below, be used for explaining the utility model in the illustrative examples and the explanation of this utility model, but not as the qualification to the utility model.
Embodiment 1:
As shown in Figure 1, for the Raman of off-axis illumination draws the index path of general appearance, comprise light source generating means, outer light path, dispersion system, receiving system.Said light source generating means is made up of signal printed circuit board (PCB) 101, battery 102, modulator 103 and luminotron 104; Said outer light path comprises beam expander 105, mirror 106, minute surface emission laser groove 107 and lens 108; Said dispersion system comprises optical splitter 109, slit 110 and grating 111, and said receiving system comprises CCD imaging system 112 and spectral mirror 113.At first said light source generating means is opened; It is 785 nanometer lasers that then said luminotron 104 is launched wavelength; Said laser changes the diameter of said laser through beam expander 105, then mirror 106 will change diameter Laser emission to the detection of a target, the said detection of a target is then launched laser once more; The convex lens converging action of a part in the scioptics 108, exhaling through concavees lens again then; Another part laser then directly through 107 effects of direct reflection laser groove, filters noise; After a part of Laser emission of above-mentioned scioptics 108, wherein after optical splitter 109, slit 110 and grating 111 effects of a part through dispersion system, received by the spectral mirror 113 of above-mentioned receiving system and CCD imaging system 112; Simultaneously, after another part Laser emission of scioptics 108, directly received by CCD imaging system 112.
Analysis according to said structure and principle; Because light source is that wavelength is the laser of 785 nanometers; Belong near infrared light, the Raman of said off-axis illumination draws can only throw light on 300 microns zone and 30 mm distance of general appearance, does not still reach the scope that people's naked eyes can be seen.
As shown in Figure 2, the index path for the Raman spectrometer of remote probe comprises light source generating means, outer light path, dispersion system, receiving system and signal processing system.Said light source generating means is made up of power supply 201 and ultraviolet Raman generator 202; Said outer light path comprises mirror 203,211, telescope 204; Said dispersion system comprises optical splitter 205 and radio frequency notch filter 206; Said receiving system comprises that laser cuts optical receiver camera 207, coupling plate 208, and signal processing system comprises computer 209 and spectrum display 210.At first connect said light source generating means, then said ultraviolet raman emission device 202 is launched the medium ultraviolet Raman light, and wavelength is about 260 nanometers; Reflex to telescope 204 twice through mirror 203,211; Draw general light to carry out converging action with said, carry out the beam split first time through the optical splitter 205 in the said dispersion system then, then carried out filter action by radio frequency notch filter 206; And, be delivered in the spectrum display 210 of said signal processing system through Optical Fiber Transmission; After carrying out the secondary beam split through optical splitter 212; Light beam after light beam after the reflection and the refraction is all cut the optical receiver camera by said laser and receives; Through after coupling plate 208 couplings, transfer to computer 209 and handle then, be presented at last on the spectrum display 210.
Analysis according to said structure and principle; Draw general appearance to compare with the Raman of the off-axis illumination shown in Fig. 1; The optical source wavelength that adopts is much smaller, because the biquadratic of the sensitivity of Raman spectrometer and wavelength is inversely proportional to, then the sensitivity of the Raman spectrometer of said remote probe draws the sensitivity of general appearance much higher than the Raman of off-axis illumination; Simultaneously; The Raman spectrometer of said remote probe can only need 0.1 second just to may detect 0.1 milligram target outside outdoor 30 meters, and eyes are had no injury, but lighting point has only 2 centimetres.Therefore, if when scanning 1 kilometer long, 2 meters wide road surfaces and going to seek transient target, then need take several months time, in the battlefield or open-airly use complete unreal border.
As shown in Figure 3; Draw the theory diagram of general appearance for the described deep ultraviolet laser Raman of the utility model; Comprise deep ultraviolet laser transmitter 301, outer light path 302, dispersion system 303, receiving system 304 and information handling system 305; Wherein, said deep ultraviolet laser transmitter 301, said outer light path 302, said dispersion system 303, said receiving system 304 are connected with said information receiving system 305 successively, and said receiving system 304 comprises CCD imaging system 309 and spectral detector 306; Said spectral detector 306 can be a photomultiplier, also can be single snowslide pipe.Said information receiving system 305 is the touch screen-device of computing machine, computer, band central processing unit, in the smart mobile phone any one, and optional scope is bigger.The Wavelength of Laser that said deep ultraviolet laser transmitter 301 is launched is in 210 ~ 230 nanometer range; The optical splitter 310 that the front end of said outer light path 302 adopts is short pass filter; Said short pass filter can reflect visible light, through Raman light and fluorescence, so the visible light that reflects naturally from target is received by the ccd array the CCD imaging system 309; Thereby can see the zone outside the laser radiation luminous point, make that seeking and observe measured target is more prone to.Said dispersion system 303 adopts adjustable optical filter 307, and said adjustable optical filter 307 can be a narrow band pass filter, can said narrow band pass filter rotational angle be made to see through the angular movement of the spectrum of said narrow band pass filter towards the shortwave direction during use.Simultaneously, said adjustable optical filter 307 also can be acousto-optic tunable filter or liquid crystal adjustable optical filter.The relaying light path of said outer light path 302 is a collimated light path, and is provided with zoom lens 308 at the front end of said optical splitter 310, makes that the size of luminous point and distance are adjustable, and the influence of also not focused of the focus point of said spectral detector 306.Object lens in the said outer light path 302 can be reflective also can be projection-type.
As shown in Figure 4, for the described deep ultraviolet laser Raman of the utility model draws the closely index path of general appearance, in conjunction with Fig. 3, comprising launching wavelength at the deep ultraviolet laser transmitter 301 in 210 ~ 230 nanometer range; Said outer light path 302 is made up of beam expander 401, lens 403, mirror 402, noise dampener 404, zoom lens 308, and said zoom lens 308 can change the distance of detection and the size of field of illumination; Said dispersion system 303 is made up of notch filter 405, lens 406,407, optical splitter 310, adjustable optical filter 307, bandpass filter 408, and said optical splitter 310 is short pass filter; Said receiving system 304 is made up of the ccd array in the CCD imaging system 309, photomultiplier 409; Said information handling system 305 is the touch screen-device of band central processing unit.Wherein, outside said, in the light path 302, be provided with pin hole 410 between beam expander 401 and the mirror 402.At first give said deep ultraviolet laser transmitter 301 energisings; The deep ultraviolet laser of launching expands the bundle post-concentration to said pin hole 410 through beam expander 401; Reflexed to lens 403 by said mirror 402; Through being emitted to said noise dampener 404 behind the collimating effect of said lens 403, then through said noise dampener 404 be emitted to zoom lens 308, then said deep ultraviolet laser is final to be assembled to detected target through said zoom lens 308.After the good fluorescence of deep ultraviolet laser, the Raman spectrum that fires back from measured target is collimated into directional light through right said zoom lens 308; Through said noise dampener 404; Wherein harmful deep ultraviolet laser is filtered by said noise dampener 404, is further filtered by said notch filter 405, then through said optical splitter 310 again; In this figure, be the effect of short pass filter; To filter out greater than the fluorescence and the visible light of 250 nanometers, then again through said bandpass filter 408, at last by on lens 406 imaging to the said ccd array.Wherein by the effect of said optical splitter 310; Fluorescence that filters and visible light through said adjustable optical filter 307 one by one the selection of wavelength pass through; And then scioptics 407 are assembled to said photomultiplier 409 receptions; And with the information feedback that receives to the touch screen-device of said band central processing unit, in the middle of then demonstrating on the touch screen-device of said band central processing unit for fluorescence, be the target picture of visible light on every side.Draw general appearance to compare with existing microscope, catch easily and object observing, resolution can reach 7cm
-1, make that the various detection things of difference are undoubted.
Embodiment 2:
As shown in Figure 5, for the described deep ultraviolet laser Raman of the utility model draws the remote index path of general appearance, in conjunction with Fig. 3, wherein the laser launched of deep ultraviolet laser transmitter 301 is that wavelength is the deep ultraviolet laser of 213 nanometers; Said outer light path 302 is made up of beam expander 501, mirror 502,503, Cassegrainian telescope 504, lens 505; Said dispersion system 303 is made up of optical splitter 506,508, notch filter 507, adjustable optical filter 307, lens 509,511,515, bandpass filter 510; Said optical splitter 506 is short pass filter; Said optical splitter 503 is long pass filter; And between said mirror 502 and mirror 503, be provided with pin hole 512, between said Cassegrainian telescope 504 and optical splitter 506, be provided with grating 513; Said receiving system 304 is made up of the ccd array in the CCD imaging system 309, photomultiplier 514, snowslide pipe 516; Said information handling system 305 is a computer.At first; Said deep ultraviolet laser transmitter 301 is launched the deep ultraviolet laser that wavelength is 213 nanometers, behind beam expander 301 expansion bundles, through mirror 502 emissions; And behind needle passing hole 512, disperse; Distance outside 30 meters, the illumination diameter is in 20 centimetres the target area, said deep ultraviolet laser is through detected target emission back generation Raman spectrum and fluorescence.The deep ultraviolet laser that said emission is returned, Raman spectrum and fluorescence are received post-concentration to said grating 513 by said Cassegrainian telescope 504; Becoming directional light by lens 505 again is incident upon on the said optical splitter 506; Said optical splitter 506 is short pass filter, wavelength is emitted to lens 509 greater than a part of fluorescence of the natural visible light of 380 nanometers and about 380 nanometers of wavelength through said bandpass filter 510 converges to and form images on the said ccd array, and the while, said ccd array linked to each other with said computer; Then can see detected target images displayed in computer; Being that the center is a fluorescence, is the visible region on every side, makes to seek and aim at the mark to become easy.Simultaneously; Fluorescence, Raman spectrum, deep ultraviolet laser that optical splitter 506 will be shorter than 308 nanometers pass through; Through said notch filter 507 said deep ultraviolet laser is ended to fall then; Then will reflex to said adjustable optical filter 307 less than the Raman spectrum of 250 nanometers through optical splitter 508; Converge on the said snowslide pipe 516 by lens 511 then, perhaps converge on the photomultiplier 514, and feed back to said computer and demonstrate corresponding spectrogram through laser generation signals passage by lens 515.Simultaneously, become fluorescence spectrum on snowslide pipe 516 or the photomultiplier 514 and show on computers by converging to by lens (not drawing among the figure) through another adjustable optical filter (not drawing among the figure) back of seeing through of optical splitter 508 greater than 250 nanometers but less than the fluorescence of 380 nanometers.Although fluorescence spectrum is not thought the such sharp-pointed and clear and definite discrimination objective of Raman spectrum, but exceed by means of one magnitude than Raman spectrum in sensitivity East Airways, the micro-vestige that can't survey Raman spectrum is very helpful.In addition; If adopt laser decomposition explosion article, can produce NO (nitrogen monoxide) and OH (hydroxyl), their fluorescence spectrum is discrete; Can separate with the wide fluorescence spectrum of other materials, reach the purpose of surveying the explosive trace vestige that Raman can't survey.Draw general appearance to compare with the closely deep ultraviolet laser Raman of Fig. 4 among the embodiment 1,, XRF has been added,,, then need not to add fluorescence detection because of volume is little for closely because remote raman system is bigger.
More than technical scheme that the utility model embodiment is provided carried out detailed introduction; Used concrete example among this paper principle and the embodiment of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (8)
1. deep ultraviolet laser Raman spectrometer is characterized in that:
Comprise deep ultraviolet laser transmitter, outer light path, dispersion system, receiving system and information handling system;
Said deep ultraviolet laser transmitter, said outer light path, said dispersion system, said receiving system are connected with said information receiving system successively;
The Wavelength of Laser that said deep ultraviolet laser transmitter is launched is in 210 ~ 230 nanometer range;
The optical splitter that the front end of said outer light path adopts is short pass filter;
Said dispersion system adopts adjustable optical filter.
2. deep ultraviolet laser according to claim 1 draws general spectrometer, it is characterized in that:
Said adjustable optical filter is narrow band pass filter, acousto-optic tunable filter or liquid crystal adjustable optical filter.
3. deep ultraviolet laser according to claim 1 draws general spectrometer, it is characterized in that:
The relaying light path of said outer light path is a collimated light path.
4. deep ultraviolet laser according to claim 1 draws general spectrometer, it is characterized in that:
The front end of the optical splitter in the said outer light path is provided with zoom lens.
5. deep ultraviolet laser according to claim 1 draws general spectrometer, it is characterized in that:
Object lens in the said outer light path are reflective or projection-type.
6. deep ultraviolet laser according to claim 1 draws general spectrometer, it is characterized in that:
Said receiving system comprises CCD imaging system and spectral detector;
The point-to-point coaxial fusion of said CCD imaging system and said spectral detector.
7. deep ultraviolet laser according to claim 7 draws general spectrometer, it is characterized in that:
Said spectral detector is photomultiplier or single snowslide pipe.
8. deep ultraviolet laser according to claim 1 draws general spectrometer, it is characterized in that:
Said information handling system is the touch screen-device of computing machine, computer, band central processing unit, in the smart mobile phone any one.
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| CN2012201210906U CN202533371U (en) | 2012-03-27 | 2012-03-27 | Deep ultraviolet (DUV) laser Raman spectrometer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103364386A (en) * | 2012-03-27 | 2013-10-23 | 武汉鹰飞拓光电子有限公司 | Deep ultraviolet laser Raman spectrometer |
| CN104713865A (en) * | 2013-12-13 | 2015-06-17 | 中国科学院大连化学物理研究所 | Deep ultraviolet laser Raman spectrometer |
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| CN106645082A (en) * | 2016-11-03 | 2017-05-10 | 北京信息科技大学 | Gating optical fiber Raman spectrometer based on laser ranging automatic focusing |
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| CN103364386A (en) * | 2012-03-27 | 2013-10-23 | 武汉鹰飞拓光电子有限公司 | Deep ultraviolet laser Raman spectrometer |
| CN103364386B (en) * | 2012-03-27 | 2016-04-06 | 武汉鹰飞拓光电子有限公司 | Deep ultraviolet laser Raman spectrometer |
| CN104713865A (en) * | 2013-12-13 | 2015-06-17 | 中国科学院大连化学物理研究所 | Deep ultraviolet laser Raman spectrometer |
| CN104713865B (en) * | 2013-12-13 | 2017-09-29 | 中国科学院大连化学物理研究所 | A kind of deep ultraviolet laser Raman spectrometer |
| CN104834895A (en) * | 2015-04-03 | 2015-08-12 | 南京理工大学 | Ultraviolet-visible light dual-band fusion portable fingerprint detector |
| CN106645082A (en) * | 2016-11-03 | 2017-05-10 | 北京信息科技大学 | Gating optical fiber Raman spectrometer based on laser ranging automatic focusing |
| CN109507166A (en) * | 2017-09-15 | 2019-03-22 | Ravr有限公司 | A kind of binary channels Miniature Raman spectrometer |
| CN109580582A (en) * | 2018-12-12 | 2019-04-05 | 哈尔滨工业大学（威海） | A kind of laser Raman spectrometer based on compound Amici Prism group |
| CN109580582B (en) * | 2018-12-12 | 2021-06-22 | 哈尔滨工业大学（威海） | Laser Raman spectrometer based on composite Amisy prism group |
| CN113074828A (en) * | 2021-03-23 | 2021-07-06 | 西安晶淼光电科技有限公司 | Explosion flame light splitting unit, spectrum light splitting temperature measuring system and method |
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Granted publication date: 20121114 Termination date: 20210327 |