CN104568897A - Raman spectrum enhancement device, raman spectrum enhancement system and raman spectrum enhancement method based on external resonant cavity technology - Google Patents
Raman spectrum enhancement device, raman spectrum enhancement system and raman spectrum enhancement method based on external resonant cavity technology Download PDFInfo
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Abstract
The invention discloses a raman spectrum enhancement device, a raman spectrum enhancement system and a raman spectrum enhancement method based on external resonant cavity technology. The device comprises a laser device, a laser transmission optical fiber, an excitation crystal, a transparent and reflecting mirror, a frequency doubling crystal and a resonant cavity, wherein the laser device provides a laser light source for raman detection, the laser device is connected with the excitation crystal through the laser transmission optical fiber, and the excitation crystal generates laser with specific wavelength; the transparent and reflecting mirror is plated, and only allows specific frequency to pass through, and totally reflects light of other wavelength; the frequency doubling crystal is used for changing the frequency of laser; the resonant cavity is used for ensuring that the laser with changed frequency can realize total reflection. The influence of weak raman effect on incomplete and inaccurate spectrogram when online raman spectrogram is used for detecting low component substances can be overcome, and the effective analysis detection of a raman spectrometer on the online complicated multi-component substances can be guaranteed.
Description
Technical field
The invention belongs to field of photoelectric technology, relate to a kind of Raman spectrum intensifier, particularly relate to a kind of Raman spectrum intensifier based on chamber exterior resonant cavity technology; Meanwhile, the invention still further relates to a kind of Raman spectrum based on chamber exterior resonant cavity technology and strengthen system and Enhancement Method.The present invention for the enhancing of Raman spectrum effect when Raman spectrometer real time on-line monitoring gas, liquid or gas-liquid mixed material component, thus realizes online Raman spectrum when detecting lower component materials, carries out qualitative and quantitative analysis accurately.
Background technology
Raman scattering refers to that light is by causing the frequency change of light because incident light and molecular motion interact during medium, and nineteen twenty-eight is found by India physicist Chandrasekhar La Laman.Raman spectrum analysis technology is a kind of contactless spectral analysis technique based on Raman scattering effect, and it can carry out qualitative and quantitative analysis to the composition and structure of material.Raman spectroscopy measurement speed is fast, and application Raman spectrum analysis can accomplish that original position is measured in real time, is conducive to the real time on-line monitoring of process control.From nineteen twenty-eight by 1940, Raman spectrum is the focus in research always, but due to Ramam effect too weak, people cannot the more weak Raman scattering signal of detect delay, enough large, colourless at survey timing demands sample volume, without dust, unstressed configuration etc.These shortcomings constrain further research and the practical application of Raman spectrum to a great extent, therefore along with the forties infrared spectrum technology progress and commercialization, the status of Raman spectrum receives great weakening.Because Raman diffused light is too faint, scientist is difficult to Raman scattering to be committed to practice in decades.After there is laser in nineteen sixty, due to laser there is the features such as monochromaticity is good, concentration of energy, output power are large, the advantage such as especially spectral radiance density is high, lasing light emitter volume is little, lightweight, easy automation mechanized operation, so very fast excitation source laser being used for Raman spectrometer, thus Raman spectrum is made to obtain new starting point.Adopt laser as monochromatic source, sample molecule is energized into a certain virtual stake, excited molecule transits to a vibrational energy level different from ground state subsequently, and now, the frequency of scattered radiation will be different from incident frequencies.The energy of vibration of this frequency change and ground state and final state is quite differential.This " inelastic scattering " light is just referred to as Raman scattering.The advantage of Raman spectrum is the quick of it, and accurately, usually do not destroy sample (solid, semisolid, liquid or gas) during measurement, sample preparation does not simply even need sample preparation.
Present Raman spectrum detects and can carry out directly carrying out direct FEEDBACK CONTROL for the specific targets of product completely.At the scene in actual Raman spectra qualitative quantitative test, the Obtaining Accurate of Raman From Spectral Signal is the key in whole Raman spectrum analysis flow process, only has signal accurately and reliably, just can talk about its qualitative, quantitative precision.Field monitoring is when material low concentration, trace, its Ramam effect is not strong, relative Raman signal is fainter, thus causes the accuracy when carrying out online raman monitoring to reduce, and exactly the material composition content of these trace is the materials needing most detection in on-line checkingi.
In view of this, how to solve low concentration, this Raman spectrum of minimal feeding monitors the bottleneck problem applied in process industry, being the thorny problem of online Raman spectrometer application at present, is also the problem that must solve.Apparatus of the present invention are exactly based on resonator cavity total reflection principle, and the outer frequency doubling technology of binding cavity, strengthens Ramam effect, provide high-quality Raman signal, Raman are detected more accurate for low concentration material, by producing far-reaching influence the future of process industry.
Summary of the invention
Technical matters to be solved by this invention is: provide a kind of Raman spectrum intensifier based on chamber exterior resonant cavity technology, high-quality Raman signal can be provided, Raman spectrum is detected more accurate for low concentration material, by producing far-reaching influence the future of process industry.
Meanwhile, the invention provides a kind of Raman spectrum based on chamber exterior resonant cavity technology and strengthen system, high-quality Raman signal can be provided, Raman spectrum is detected for low concentration material more accurate, by producing far-reaching influence the future of process industry.
In addition, the present invention also provides a kind of Raman spectrum Enhancement Method based on chamber exterior resonant cavity technology, can provide high-quality Raman signal, Raman spectrum is detected more accurate for low concentration material, by producing far-reaching influence the future of process industry.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
Based on a Raman spectrum intensifier for chamber exterior resonant cavity technology, for the enhancing of liquid, gas and the gas-liquid mixed material Raman signal when carrying out online Raman spectrum and detecting;
Described device comprises laser instrument, laser transmission fiber, excites crystal, saturating anti-mirror, frequency-doubling crystal and resonator cavity;
Described laser instrument provides LASER Light Source for Raman detection, and laser instrument is connected by laser transmission fiber and excites crystal, excites crystal to produce the laser of specific wavelength;
Described anti-mirror, through coating film treatment, only allows characteristic frequency light to pass through, is totally reflected the light of other wavelength; Frequency-doubling crystal is for changing the frequency of laser; Described resonator cavity is for ensureing that the laser after changing frequency can realize total reflection.
As a preferred embodiment of the present invention, described resonator cavity comprises two sides catoptron parallel to each other, places operation material between two catoptrons, and two total reflective mirrors forming this resonator cavity are anti-mirror; After the laser of specific wavelength enters resonator cavity, carry out the reflection of unlimited number of times in chamber, the frequency carrying out being totally reflected two light strengthened in the laser resonant cavity that laser instrument is launched is different.
As a preferred embodiment of the present invention, completely reflecting mirror in described anti-mirror, frequency-doubling crystal and resonator cavity is integrated on a plated film crystal, this plated film crystal transmissive crosses the laser of characteristic frequency, change ad hoc laser frequency by frequency doubling technology, and be totally reflected the laser of the characteristic frequency after frequency multiplication.
As a preferred embodiment of the present invention, described device uses cavity external frequency multiplication technology; The laser of certain wavelength that laser instrument is launched, irradiating and excites crystal accordingly, by only allowing the saturating anti-mirror through specific wavelength laser, entering into frequency-doubling crystal; Described frequency-doubling crystal, by coating technique, makes the light through its certain frequency be increased by frequency after it; Use 2 octave frequency crystal, even if original laser frequency increases to original twice, shortened wavelengths is original 1/2nd.
As a preferred embodiment of the present invention, the laser after wavelength shift strengthens in resonator cavity, optical maser wavelength can be made to reach almost free of losses total reflection strengthen by chamber inner total reflection mirror.
Raman spectrum based on chamber exterior resonant cavity technology strengthens a system, and it is characterized in that, described system comprises: described Raman spectrum intensifier, Raman detector, the second optical fiber, Raman spectrometer;
Arrange described Raman detector in the resonator cavity of described Raman spectrum intensifier, Raman signal carries out spectral analysis by the second fiber optic conduction to Raman spectrometer.
As a preferred embodiment of the present invention, after former Emission Lasers frequency shift, at resonator cavity through total reflection, through enhancing of repeatedly repeatedly vibrating in the cavity of resonator cavity, increase the contact area with sample simultaneously, thus enhance the Raman scattering signal of sample, collected by the described Raman detector being positioned at resonator cavity side and to strengthen after signal by the second Optical Fiber Transmission to Raman spectrometer, obtain the Raman spectrum spectrogram of enhancing.
An Enhancement Method for above-mentioned Raman spectrum intensifier, described method comprises:
The laser launched by laser instrument irradiates and excites crystal, produces the laser of specific wavelength, arrives the saturating anti-mirror only allowing characteristic frequency light to pass through, filters out the parasitic light that may occur in laser production process; The saturating anti-mirror chosen is identical with the wavelength exciting crystal to excite, and like this, after entering frequency-doubling crystal, laser frequency becomes the change of multiple;
Change the laser after frequency in resonator cavity, carry out total reflection and strengthen laser effect; Owing to being provided with frequency-doubling crystal when laser enters resonator cavity, the laser carrying out being totally reflected in resonator cavity can not lose through saturating anti-mirror above again;
The frequency carrying out being totally reflected the light strengthened in the laser resonant cavity that laser instrument is launched is different, the laser carrying out multiple total reflection enhancing in chamber repeatedly direct irradiation on material to be measured to be detected, now carry out Raman signal collection, obtain the material Raman detection spectrogram after strengthening.
Beneficial effect of the present invention is: the Raman spectrum intensifier based on chamber exterior resonant cavity technology that the present invention proposes, system and method, achieve real time on-line monitoring gas, the enhancing of raman spectral signal when liquid or gas-liquid mixed material component, by the wavelength shift of specific wavelength laser launched laser instrument, and use Fabry-Perot resonator cavity to make laser carry out multiple total reflection, reach the enhancing of laser and the object of enlarge active surface, overcome online Raman spectrum when detecting lower component materials, the incomplete inaccurate impact of the weak spectrogram caused of Ramam effect, ensure that Raman spectrometer is effectively analyzed detection to online complicated multi-component material.
Accompanying drawing explanation
Fig. 1 is the principle schematic that Raman spectrum of the present invention strengthens system.
Fig. 2 is the intra resonant cavity structural representation of apparatus of the present invention.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with accompanying drawing.
Embodiment one
Present invention is disclosed a kind of Raman spectrum intensifier based on chamber exterior resonant cavity technology and system, the enhancing of raman spectral signal when apparatus of the present invention can be applicable to Raman spectrometer real time on-line monitoring gas, liquid or gas-liquid mixed material component, thus realize online Raman spectrum when detecting lower component materials, can qualitative and quantitative analysis accurately be carried out.Due to spectrum on line Test Field more complicated, badly, it is preferable states that online Raman spectrum detects by the scope of fiber optic conduction in 150m, so means for correcting of the present invention is placed in analyzer house with online Raman detector agent set, simultaneously the structural volume of apparatus of the present invention less, use more convenient.
Below in conjunction with preferred embodiment, to according to embodiment provided by the invention, feature and effect thereof, after detailed description, in order to simple clearly object, the hereafter appropriate description eliminating known technology is in order to avoid the description of those unnecessary details impact to the technical program.
Refer to Fig. 1, in the present embodiment, choosing wavelength is that the laser of 808nm is as laser instrument 1, for follow-up Raman detection provides excitation source, laser frequency and enhanced portion are divided and are comprised: laser conduction optical fiber 2, and what excite generation 1064nm wavelength laser excites crystal 3, allows the saturating anti-mirror 6,7 that characteristic frequency laser passes through, change the frequency-doubling crystal 4 of laser frequency, and ensure that the laser after changing frequency can realize the Fabry-Perot resonator cavity 5 be totally reflected; Fabry-Perot resonator cavity 5 is filled with material to be detected in chamber, is provided with Raman detector 8 in cavity, and Raman signal conducts to Raman spectrometer 10 by optical fiber 9 and carries out spectral analysis.
As Fig. 2, Fig. 2 discloses the inner structure schematic diagram of above-mentioned resonator cavity, the saturating anti-mirror 6,7 that the permission characteristic frequency laser selected in the present invention passes through, change the frequency-doubling crystal 4 of laser frequency, and ensure that the laser after changing frequency can realize the Fabry-Perot resonator cavity 5 be totally reflected, in actual applications, can be integrated on a plated film crystal 11, the feature of plated film crystal 11 is can transmitted through the laser of characteristic frequency, change ad hoc laser frequency by frequency doubling technology, and be totally reflected the laser of the characteristic frequency after frequency multiplication.
For the change of specific laser frequency, by the laser of the 808nm that laser instrument 1 is launched, conducted by optical fiber 2, arrive and excite crystal 3 to produce the laser of 1064nm, then the saturating anti-mirror 6 by only allowing specific wavelength 1064nm to pass through, so entering the optical maser wavelength before frequency-doubling crystal 4 is 1064nm.Specific wavelength be the laser of 1064nm by will its original wavelength be changed after frequency-doubling crystal 4, the change of wavelength is the selected of frequency-doubling crystal, selects twice frequency-doubling crystal, and the laser conversion of 1064nm is that the half of original wavelength is 532nm.
For specific laser enhancing, change the laser after frequency in Fabry-Perot resonator cavity 5, be totally reflected, repeatedly shake enhancing.Because we are provided with frequency-doubling crystal 4 when laser enters Fabry-Perot resonator cavity, the laser carrying out being totally reflected in chamber can not lose through saturating anti-mirror above.The laser carrying out multiple total reflection enhancing in chamber repeatedly direct irradiation on material to be measured to be detected, produce Raman light, and carry out Raman signal collection by the Ramam effect detecting device 8 be placed in chamber, obtain the material Raman detection signal after strengthening, reach Raman spectrum imaging system by optical fiber 9, finally obtain the detection material Raman spectrogram after strengthening.
Be described above the Raman spectrum intensifier and system that the present invention is based on chamber exterior resonant cavity technology, the present invention is while announcement said apparatus and system, also disclose a kind of Enhancement Method of above-mentioned Raman spectrum intensifier, described method comprises: the laser launched by laser instrument irradiates and excites crystal, produce the laser of specific wavelength, arrive the saturating anti-mirror only allowing characteristic frequency light to pass through, filter out the parasitic light that may occur in all laser production processes; The saturating anti-mirror chosen is identical with the wavelength exciting crystal to excite, and like this, after entering frequency-doubling crystal, laser frequency becomes the change of multiple.Change the laser after frequency in resonator cavity, carry out total reflection and strengthen laser effect; Owing to being provided with frequency-doubling crystal when laser enters resonator cavity, the laser carrying out being totally reflected in resonator cavity can not lose through saturating anti-mirror above again.The frequency carrying out being totally reflected the light strengthened in the laser resonant cavity that laser instrument is launched is different, the laser carrying out multiple total reflection enhancing in chamber repeatedly direct irradiation on material to be measured to be detected, now carry out Raman signal collection, obtain the material Raman detection spectrogram after strengthening.
In sum, the Raman spectrum intensifier based on chamber exterior resonant cavity technology that the present invention proposes, system and method, achieve real time on-line monitoring gas, the enhancing of raman spectral signal when liquid or gas-liquid mixed material component, by the wavelength shift of specific wavelength laser launched laser instrument, and use Fabry-Perot resonator cavity to make laser carry out multiple total reflection, reach the enhancing of laser and the object of enlarge active surface, overcome online Raman spectrum when detecting lower component materials, the incomplete inaccurate impact of the weak spectrogram caused of Ramam effect, ensure that Raman spectrometer is effectively analyzed detection to online complicated multi-component material.
Here description of the invention and application is illustrative, not wants by scope restriction of the present invention in the above-described embodiments.Distortion and the change of embodiment disclosed are here possible, are known for the replacement of embodiment those those of ordinary skill in the art and the various parts of equivalence.Those skilled in the art are noted that when not departing from spirit of the present invention or essential characteristic, the present invention can in other forms, structure, layout, ratio, and to realize with other assembly, material and parts.When not departing from the scope of the invention and spirit, can other distortion be carried out here to disclosed embodiment and change.
Claims (8)
1. based on a Raman spectrum intensifier for chamber exterior resonant cavity technology, for the enhancing of liquid, gas and the gas-liquid mixed material Raman signal when carrying out online Raman spectrum and detecting; It is characterized in that:
Described device comprises laser instrument, laser transmission fiber, excites crystal, saturating anti-mirror, frequency-doubling crystal and resonator cavity;
Described laser instrument provides LASER Light Source for Raman detection, and laser instrument is connected by laser transmission fiber and excites crystal, excites crystal to produce the laser of specific wavelength;
Described anti-mirror, through coating film treatment, only allows characteristic frequency light to pass through, is totally reflected the light of other wavelength; Frequency-doubling crystal is for changing the frequency of laser; Described resonator cavity is for ensureing that the laser after changing frequency can realize total reflection.
2. the Raman spectrum intensifier based on chamber exterior resonant cavity technology according to claim 1, is characterized in that:
Described resonator cavity comprises two sides catoptron parallel to each other, places operation material between two catoptrons, and two total reflective mirrors forming this resonator cavity are anti-mirror; After the laser of specific wavelength enters resonator cavity, carry out the reflection of unlimited number of times in chamber, the frequency carrying out being totally reflected two light strengthened in the laser resonant cavity that laser instrument is launched is different.
3. the Raman spectrum intensifier based on chamber exterior resonant cavity technology according to claim 1, is characterized in that:
Completely reflecting mirror in described anti-mirror, frequency-doubling crystal and resonator cavity is integrated on a plated film crystal, this plated film crystal transmissive crosses the laser of characteristic frequency, change ad hoc laser frequency by frequency doubling technology, and be totally reflected the laser of the characteristic frequency after frequency multiplication.
4. the Raman spectrum intensifier based on chamber exterior resonant cavity technology according to claim 1, is characterized in that:
Described device uses cavity external frequency multiplication technology; The laser of certain wavelength that laser instrument is launched, irradiating and excites crystal accordingly, by only allowing the saturating anti-mirror through specific wavelength laser, entering into frequency-doubling crystal; Described frequency-doubling crystal, by coating technique, makes the light through its certain frequency be increased by frequency after it; Use 2 octave frequency crystal, even if original laser frequency increases to original twice, shortened wavelengths is original 1/2nd.
5. the Raman spectrum intensifier based on chamber exterior resonant cavity technology according to claim 4, is characterized in that:
Wavelength shift be after laser strengthen in resonator cavity, by chamber inner total reflection mirror can make optical maser wavelength reach almost free of losses total reflection strengthen.
6. the Raman spectrum based on chamber exterior resonant cavity technology strengthens a system, and it is characterized in that, described system comprises: Raman spectrum intensifier according to claim 1, Raman detector, the second optical fiber, Raman spectrometer;
Arrange described Raman detector in the resonator cavity of described Raman spectrum intensifier, Raman signal carries out spectral analysis by the second fiber optic conduction to Raman spectrometer.
7. the Raman spectrum based on chamber exterior resonant cavity technology according to claim 6 strengthens system, it is characterized in that:
After former Emission Lasers frequency shift, at resonator cavity through total reflection, through enhancing of repeatedly repeatedly vibrating in the cavity of resonator cavity, increase the contact area with sample simultaneously, thus enhance the Raman scattering signal of sample, being collected by the described Raman detector being positioned at resonator cavity side to strengthen after signal by the second Optical Fiber Transmission to Raman spectrometer, obtains the Raman spectrum spectrogram of enhancing.
8. an Enhancement Method for Raman spectrum intensifier described in claim 1, is characterized in that, described method comprises:
The laser launched by laser instrument irradiates and excites crystal, produces the laser of specific wavelength, arrives the saturating anti-mirror only allowing characteristic frequency light to pass through, filters out the parasitic light that may occur in all laser production processes; The saturating anti-mirror chosen is identical with the wavelength exciting crystal to excite, and like this, after entering frequency-doubling crystal, laser frequency becomes the change of multiple;
Change the laser after frequency in resonator cavity, carry out total reflection and strengthen laser effect; Owing to being provided with frequency-doubling crystal when laser enters resonator cavity, the laser carrying out being totally reflected in resonator cavity can not lose through saturating anti-mirror above again;
The frequency carrying out being totally reflected the light strengthened in the laser resonant cavity that laser instrument is launched is different, the laser carrying out multiple total reflection enhancing in chamber repeatedly direct irradiation on material to be measured to be detected, now carry out Raman signal collection, obtain the material Raman detection spectrogram after strengthening.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181674A (en) * | 2015-10-21 | 2015-12-23 | 南京工业大学 | Raman spectral enhancement system and enhancement method based on photonic crystal fiber resonant cavity |
| CN106248651A (en) * | 2016-10-17 | 2016-12-21 | 南京工业大学 | Raman spectrum intensifier based on piezoelectric ceramics regulation resonator cavity and Enhancement Method |
| CN106404740A (en) * | 2016-10-11 | 2017-02-15 | 北京信息科技大学 | Raman spectrum liquid detection method based on annular intracavity frequency doubling and hollow-core fiber |
| CN108281884A (en) * | 2018-01-21 | 2018-07-13 | 南京大学 | A kind of Raman spectrum detecting device of Fabry-Perot cavity enhancement method |
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| CN111426677A (en) * | 2020-04-29 | 2020-07-17 | 中国工程物理研究院核物理与化学研究所 | Raman spectrum multi-site excitation structure and gas analysis method |
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| CN113295668A (en) * | 2021-05-14 | 2021-08-24 | 重庆大学 | Hollow waveguide cavity for gas Raman signal enhancement |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5721748A (en) * | 1996-09-11 | 1998-02-24 | Trw Inc. | Intracavity doubled solid state Raman laser system |
| CN101986480A (en) * | 2009-07-29 | 2011-03-16 | 中国科学院福建物质结构研究所 | Composite self-Raman frequency-doubled yellow laser crystal module |
| CN102244345A (en) * | 2011-06-10 | 2011-11-16 | 天津大学 | Tunable titanium jewelry laser of 588nm yellow light pump |
| CN202050155U (en) * | 2011-04-13 | 2011-11-23 | 山东大学 | Full-solid-state yellow light self-mode-locked Raman laser |
| CN102946048A (en) * | 2012-11-26 | 2013-02-27 | 山东大学 | Raman laser based on crystalline in fresnoite structure |
| AU2013100903A4 (en) * | 2013-07-02 | 2013-08-01 | Macau University Of Science And Technology | A method of generating raman laser for inducing fluorescence of fluoranthene and a system thereof |
| CN203235152U (en) * | 2012-11-23 | 2013-10-16 | 苏州生物医学工程技术研究所 | Intracavity frequency-doubling all-solid-state raman yellow orange laser skin vascular disease therapeutic instrument |
| CN203658266U (en) * | 2013-10-29 | 2014-06-18 | 苏州拉曼检测技术有限公司 | Raman spectrum enhancement device and Raman spectrum enhancement system based on extra-resonant cavity technology |
-
2013
- 2013-10-29 CN CN201310522428.8A patent/CN104568897B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5721748A (en) * | 1996-09-11 | 1998-02-24 | Trw Inc. | Intracavity doubled solid state Raman laser system |
| CN101986480A (en) * | 2009-07-29 | 2011-03-16 | 中国科学院福建物质结构研究所 | Composite self-Raman frequency-doubled yellow laser crystal module |
| CN202050155U (en) * | 2011-04-13 | 2011-11-23 | 山东大学 | Full-solid-state yellow light self-mode-locked Raman laser |
| CN102244345A (en) * | 2011-06-10 | 2011-11-16 | 天津大学 | Tunable titanium jewelry laser of 588nm yellow light pump |
| CN203235152U (en) * | 2012-11-23 | 2013-10-16 | 苏州生物医学工程技术研究所 | Intracavity frequency-doubling all-solid-state raman yellow orange laser skin vascular disease therapeutic instrument |
| CN102946048A (en) * | 2012-11-26 | 2013-02-27 | 山东大学 | Raman laser based on crystalline in fresnoite structure |
| AU2013100903A4 (en) * | 2013-07-02 | 2013-08-01 | Macau University Of Science And Technology | A method of generating raman laser for inducing fluorescence of fluoranthene and a system thereof |
| CN203658266U (en) * | 2013-10-29 | 2014-06-18 | 苏州拉曼检测技术有限公司 | Raman spectrum enhancement device and Raman spectrum enhancement system based on extra-resonant cavity technology |
Non-Patent Citations (1)
| Title |
|---|
| 霍玉晶: "用于产生THz波和黄激光的全固态激光器", 《红外与激光工程》 * |
Cited By (13)
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| CN105181674A (en) * | 2015-10-21 | 2015-12-23 | 南京工业大学 | Raman spectral enhancement system and enhancement method based on photonic crystal fiber resonant cavity |
| CN106404740B (en) * | 2016-10-11 | 2019-03-01 | 北京信息科技大学 | Raman spectrum liquid detecting method based on annular intracavity frequency doubling and hollow-core fiber |
| CN106404740A (en) * | 2016-10-11 | 2017-02-15 | 北京信息科技大学 | Raman spectrum liquid detection method based on annular intracavity frequency doubling and hollow-core fiber |
| CN106248651A (en) * | 2016-10-17 | 2016-12-21 | 南京工业大学 | Raman spectrum intensifier based on piezoelectric ceramics regulation resonator cavity and Enhancement Method |
| CN108281884A (en) * | 2018-01-21 | 2018-07-13 | 南京大学 | A kind of Raman spectrum detecting device of Fabry-Perot cavity enhancement method |
| CN109239009A (en) * | 2018-09-03 | 2019-01-18 | 杭州电子科技大学 | Gaseous mercury concentration detection apparatus and method based on ring resonator frequency multiplication structure |
| CN109149789A (en) * | 2018-09-30 | 2019-01-04 | 苏州大学 | A kind of wireless charging method and device |
| CN109557075A (en) * | 2019-01-21 | 2019-04-02 | 苏州朝光光电有限公司 | A kind of Raman enhancing structure based on exocoel resonance |
| CN111426677A (en) * | 2020-04-29 | 2020-07-17 | 中国工程物理研究院核物理与化学研究所 | Raman spectrum multi-site excitation structure and gas analysis method |
| CN111426677B (en) * | 2020-04-29 | 2023-09-19 | 中国工程物理研究院核物理与化学研究所 | Raman spectrum multi-site excitation structure and gas analysis method |
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| CN113295668A (en) * | 2021-05-14 | 2021-08-24 | 重庆大学 | Hollow waveguide cavity for gas Raman signal enhancement |
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