CN106525752A - Method for infrared spectroscopy through nano-optics antenna - Google Patents
Method for infrared spectroscopy through nano-optics antenna Download PDFInfo
- Publication number
- CN106525752A CN106525752A CN201611113832.XA CN201611113832A CN106525752A CN 106525752 A CN106525752 A CN 106525752A CN 201611113832 A CN201611113832 A CN 201611113832A CN 106525752 A CN106525752 A CN 106525752A
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- optical antenna
- nanocomposite optical
- infrared spectroscopy
- infrared
- nanocomposite
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- 238000004566 IR spectroscopy Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000010287 polarization Effects 0.000 claims abstract description 25
- 239000011159 matrix material Substances 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000004088 simulation Methods 0.000 claims abstract description 8
- 238000001228 spectrum Methods 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims description 62
- 239000002114 nanocomposite Substances 0.000 claims description 49
- 230000033001 locomotion Effects 0.000 claims description 13
- 238000002835 absorbance Methods 0.000 claims description 8
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 238000002834 transmittance Methods 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 abstract 1
- 238000005094 computer simulation Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000255 optical extinction spectrum Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- 238000001069 Raman spectroscopy Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- AGVAZMGAQJOSFJ-WZHZPDAFSA-M cobalt(2+);[(2r,3s,4r,5s)-5-(5,6-dimethylbenzimidazol-1-yl)-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl] [(2r)-1-[3-[(1r,2r,3r,4z,7s,9z,12s,13s,14z,17s,18s,19r)-2,13,18-tris(2-amino-2-oxoethyl)-7,12,17-tris(3-amino-3-oxopropyl)-3,5,8,8,13,15,18,19-octamethyl-2 Chemical compound [Co+2].N#[C-].[N-]([C@@H]1[C@H](CC(N)=O)[C@@]2(C)CCC(=O)NC[C@@H](C)OP(O)(=O)O[C@H]3[C@H]([C@H](O[C@@H]3CO)N3C4=CC(C)=C(C)C=C4N=C3)O)\C2=C(C)/C([C@H](C\2(C)C)CCC(N)=O)=N/C/2=C\C([C@H]([C@@]/2(CC(N)=O)C)CCC(N)=O)=N\C\2=C(C)/C2=N[C@]1(C)[C@@](C)(CC(N)=O)[C@@H]2CCC(N)=O AGVAZMGAQJOSFJ-WZHZPDAFSA-M 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000002070 nanowire Substances 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The invention relates to a method for infrared spectroscopy, in particular to a method and device for infrared spectroscopy through a nano-optics antenna. The nano-optics antenna is used as a single-color original, and infrared spectroscopy is carried out through experiment measurement, computer simulation and matrix calculation; with transmittance difference of infrared light of various wavelengths at different polarization angles, a transmittance coefficient matrix B is obtained through simulation, an actual light intensity matrix A is obtained through actual measurement, and a spectrum of measured light is obtained under matrix operation via a formula; according to the method, the structure is simple, earthquake resistance is good, and stability is high; the method is mainly applied to infrared spectroscopy.
Description
Technical field
Technical field according to the present invention is nanocomposite optical, and in particular to one kind carries out infrared point using nanocomposite optical antenna
The method of light, is that a kind of light channel structure is simple, and shock resistance is good, the high infrared spectroscopy method of stability.
Background technology
Nanocomposite optical antenna is the emerging advanced subject in nanocomposite optical direction in recent years, is widely used in new type light source, height
The fields such as density data storage, photoetching, solaode, optical microscope and Raman scattering, however, relevant nanocomposite optical antenna
The application of light splitting is carried out in infrared range of spectrum, and there is not been reported.
At this stage, application mainly fourier-transform infrared spectrophotometer both at home and abroad with regard to infrared spectroscopy technology, its
Principle is to obtain interference of light figure according to the coherence of light, recycles stratagem machine to carry out fast Fourier transform and is changed into spectrum
Figure, which realizes that the critical component of spectroscopic behaviour is Michelson's interferometer, but as which requires incident illumination and reflected light moment
Keeping parallelism, and collimated light path be difficult adjust, often due to some vibrations etc. extrinsic factor and it is unstable.
The content of the invention
The present invention is directed to above present situation and problem, it is proposed that a kind of new infrared spectroscopy method, is made with nanocomposite optical antenna
For monochrome original, matrix operationss are fitted by experiment measurement, computer mould and obtain infrared spectrum, the method light channel structure is simple,
Shock resistance is good, and stability is high, and the application for nanocomposite optical antenna in infrared spectroscopy technology proposes new thought.
To solve above-mentioned technical problem, the technical scheme is that：
A kind of application nanocomposite optical antenna carries out the device of infrared spectroscopy, including optical path and computer；Optical path is by red
Outer light source, polaroid, nanocomposite optical antenna, motion controller, Infrared Detectorss and data acquisition unit composition, computer are used to receive
The process computing of the simulation, the setting of motion controller and data acquisition unit and data of rice optical antenna absorbance.
Infrared light supply, polaroid, nanocomposite optical antenna, Infrared Detectorss are sequentially placed in same optical axis, wherein nanometer
Optical antenna is fixed on motion controller, and polaroid is 0 ° with respect to the polarization direction initial value of nanocomposite optical antenna, by fortune
Movement controller control nanocomposite optical antenna opposite polarization piece rotation, makes to incide the angle of polarization of the infrared light on nanocomposite optical antenna
Between 0 ° ~ 180 °.
A kind of method that application nanocomposite optical antenna carries out infrared spectroscopy, follows the steps below：
A, by RSOFT-Fullwave to nanocomposite optical antenna model be simulated, obtain each wavelength under different polarization angle
Absorbance, obtains coefficient matrix B：
B, light intensity A obtained by measurement under different polarization angle：
C, byObtain light source light spectrum to be measured, wherein X is that polaroid each wavelength passes through rate coefficient
Matrix, is represented by：
Y is each wavelength response degree coefficient matrix of detector, can be obtained by calibration, is expressed as：
The outstanding feature of the present invention is only once to be simulated for a nanocomposite optical antenna and obtain each under different polarization angle
The absorbance of individual wavelength, that is, obtain coefficient matrix, need to only gather the light intensity of different polarization angle, by calculating in actual measurement
Machine processing data can more easily obtain light source light spectrum to be measured, and the optical path structure being sequentially connected in series is simpler, stable, resists
Shake effect is more preferable.
Description of the drawings
The specific embodiment of the present invention is described in further detail below by accompanying drawing.
Fig. 1 is the device that infrared spectroscopy is carried out using nanocomposite optical antenna；
Fig. 2 is nanocomposite optical antenna model figure；
Fig. 3 is the infrared light transmittance spectrogram for simulating nanocomposite optical antenna different wave length under 0 °, the 45 ° and 90 ° angle of polarization；
1 it is infrared light supply in figure, 2 be polaroid, 3 be nanocomposite optical antenna, 4 be motion controller, 5 be Infrared Detectorss, 6 is
Data acquisition unit, 7 be computer, 8 be trunnion axis, 9 be nanocomposite optical antenna model, 10 for antenna long axis direction, 11 be day
The short-axis direction of line, 12 for antenna vertical direction of principal axis, 13 for antenna substrate.
Specific embodiment
Example below combines accompanying drawing, and the invention will be further described.
As shown in figure 1, a kind of application nanocomposite optical antenna carries out the device of infrared spectroscopy, infrared light supply 1 is passed sequentially through partially
Shake piece 2, nanocomposite optical antenna 3, detector 5 and data acquisition unit 6, and wherein nanocomposite optical antenna is fixed on motion controller 4,
Measurement light is constituted by infrared light supply 1, polaroid 2, nanocomposite optical antenna 3, motion controller 4, detector 5 and data acquisition unit 6
Road；Computer is used for simulation, the setting of motion controller and data acquisition unit and the data of nanocomposite optical antenna absorbance
Process computing.Wherein described nanocomposite optical antenna is identical with simulation nanocomposite optical antenna model.
It is specific as follows：
Infrared light supply 1 sends infrared light, by becoming polarized light after polaroid 2, on polarizing light irradiation to nanocomposite optical antenna 3 after
Reach detector 4, the detector connection collection infrared light light intensity of data acquisition unit 5.Its mid-infrared light source 1, polaroid 2, nanometer light
Antenna 3 and detector 4 are on same level axle 8；Wherein described polarization direction, as shown in Fig. 2 being located at optical antenna
Long axis direction 11 on.
By adjusting polaroid 2 or nanocomposite optical antenna 3 during beginning, the polarization angle for making incident illumination is 0 °（With optics
The long axis direction 11 of antenna is parallel）When gather a secondary data；Nanocomposite optical antenna 3 is made to rotate 5 ° by motion controller 4, even if
The polarization direction for inciding the light on optical antenna is changed into 5 °, again gathered data；Increase polarization angle successively, adopt at interval of 5 °
Collect a secondary data, until 180 °, the light intensity matrix of the different polarization angle for obtaining is：
The method adopted when being simulated to nanocomposite optical antenna 3 is time-domain finite difference（FDTD）, the module of employing is
Based on the Fullwave modules in the RSOFT softwares of FDTD algorithms, model is Drude models.Incident light source is set to plane wave,
Boundary condition is completely permutation（PML）.
If Fig. 2 is cuboid bar shaped nanocomposite optical antenna structure view, the material of nanocomposite optical antenna 10 is gold, its length
Axle is 2.10 μm, and short axle is 0.20 μm, and vertical axises are 0.10 μm.Nanocomposite optical antenna 10 is prepared in substrate 13, the substrate
Material is calcium fluoride.Light source sends plane wave, incident along vertical axial from below antenna, the direction of plane wave polarization and antenna
Longer axis parallel.Boundary condition is set to PML（Completely permutation, Perfectly matched layer）, zoning size is
Long axis direction 3000nm, short-axis direction 1000nm, vertical axis 1200nm, in order to take into account computational efficiency and accuracy, calculate
Sizing grid be 10nm*10nm*10nm, nanowires of gold and its neighbouring sizing grid are 5nm*5nm*5nm.
As the nanocomposite optical antenna 3 for selecting is symmetrical structure, 0 ° of the angle of polarization is identical with each Thewavelengthtransmittance when 180 °,
5 ° identical with each wavelength transmitance when 175 °, by that analogy.So selecting to calculate once each from 0 ° to 90 ° at interval of 5 ° of simulations
The absorbance of individual wavelength；Due to simulate nanocomposite optical antenna pair 3um to 10um infrared transmission effect more preferably, so selection is red
Wave section is 3um ~ 10um；The Optical transmission spectrum figure of each wavelength when the angle of polarization is 0 °, 45 ° and 90 ° is listed as shown in Figure 3；
Coefficient matrix B can be obtained by the simulation to above all angles is：
Due to
Above-mentioned formula is changed into matrix form to be represented by：
Tested smooth spectrum matrix can be obtained by above-mentioned formula is：
I.e.
Obtain by light-metering spectrum finally by spectral radiometric calibration.
The Optical transmission spectrum figure of method each wavelength under the different polarization angle that simulation is obtained of fitting can be passed through
The upper transmittance values for inserting each wavelength under more angles of polarization, and reduce polarization angular spacing, also make in actual measurement
The interval correspondence of the angle of polarization reduces, and can obtain more accurately by light-metering spectrogram.
Claims (4)
1. a kind of application nanocomposite optical antenna carries out the device of infrared spectroscopy, it is characterised in that：Including optical path and computer
（7）；Optical path is by infrared light supply（1）, polaroid（2）, nanocomposite optical antenna（3）, motion controller（4）, Infrared Detectorss
（5）And data acquisition unit（6）Composition, computer（7）For the simulation of nanocomposite optical antenna absorbance, motion controller and data
The setting of harvester and the process computing of data.
2. a kind of application nanocomposite optical antenna according to claim 1 carries out the device of infrared spectroscopy, it is characterised in that red
Outer light source（1）, polaroid（2）, nanocomposite optical antenna（3）, Infrared Detectorss（5）It is sequentially placed in same optical axis, it is described to receive
Rice optical antenna（3）It is fixed on motion controller（4）On, by motion controller（4）Control nanocomposite optical antenna（3）With respect to inclined
Shake piece（2）Rotation, makes to incide nanocomposite optical antenna（3）On infrared light the angle of polarization at 0 ° ~ 180 °.
3. a kind of method that application nanocomposite optical antenna carries out infrared spectroscopy, it is characterised in that follow the steps below：
By RSOFT-Fullwave to nanocomposite optical antenna model（9）It is simulated, obtains each wavelength under different polarization angle
Absorbance, obtain coefficient matrix B：
The device of infrared spectroscopy is carried out by a kind of application nanocomposite optical antenna as claimed in claim 1, measurement obtains difference
Light intensity A under the angle of polarization：
By, obtain light source light spectrum to be measured.
4. the method that a kind of application nanocomposite optical antenna according to claim 3 carries out infrared spectroscopy, it is characterised in that：No
Can be obtained by fitting with the absorbance of each wavelength under the angle of polarization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611113832.XA CN106525752A (en) | 2016-12-07 | 2016-12-07 | Method for infrared spectroscopy through nano-optics antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611113832.XA CN106525752A (en) | 2016-12-07 | 2016-12-07 | Method for infrared spectroscopy through nano-optics antenna |
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| CN106525752A true CN106525752A (en) | 2017-03-22 |
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| CN201611113832.XA Pending CN106525752A (en) | 2016-12-07 | 2016-12-07 | Method for infrared spectroscopy through nano-optics antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037078A (en) * | 2017-12-01 | 2018-05-15 | 中国计量科学研究院 | A kind of method and system of the measurement device for Optical Properties of Materials based on matrixing |
| CN110274889A (en) * | 2018-03-15 | 2019-09-24 | 南京大学 | Multi-channel terahertz spectrographic detection unit based on surface plasma body resonant vibration antenna |
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|---|---|---|---|---|
| US20040174521A1 (en) * | 2003-03-07 | 2004-09-09 | Drachev Vladimir P. | Raman imaging and sensing apparatus employing nanoantennas |
| EP2133688A1 (en) * | 2008-06-11 | 2009-12-16 | Koninklijke Philips Electronics N.V. | Nanoantenna and uses thereof |
| CN103776790A (en) * | 2014-02-25 | 2014-05-07 | 重庆大学 | Infrared spectrum enhancement and detection method and infrared spectrum enhancement and detection device based on graphene nano antenna |
| CN104034657A (en) * | 2013-03-07 | 2014-09-10 | 精工爱普生株式会社 | Analysis device, analysis method, optical element, method of designing optical element, and electronic apparatus |
| CN105092035A (en) * | 2014-05-09 | 2015-11-25 | 三星电子株式会社 | Spectro-sensor, spectro-sensor module, spectrometer and spectral analysis method |
-
2016
- 2016-12-07 CN CN201611113832.XA patent/CN106525752A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040174521A1 (en) * | 2003-03-07 | 2004-09-09 | Drachev Vladimir P. | Raman imaging and sensing apparatus employing nanoantennas |
| EP2133688A1 (en) * | 2008-06-11 | 2009-12-16 | Koninklijke Philips Electronics N.V. | Nanoantenna and uses thereof |
| CN104034657A (en) * | 2013-03-07 | 2014-09-10 | 精工爱普生株式会社 | Analysis device, analysis method, optical element, method of designing optical element, and electronic apparatus |
| CN103776790A (en) * | 2014-02-25 | 2014-05-07 | 重庆大学 | Infrared spectrum enhancement and detection method and infrared spectrum enhancement and detection device based on graphene nano antenna |
| CN105092035A (en) * | 2014-05-09 | 2015-11-25 | 三星电子株式会社 | Spectro-sensor, spectro-sensor module, spectrometer and spectral analysis method |
Non-Patent Citations (1)
| Title |
|---|
| 黄彩进等: "纳米光学天线性能研究进展", 《激光与光电子学进展》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037078A (en) * | 2017-12-01 | 2018-05-15 | 中国计量科学研究院 | A kind of method and system of the measurement device for Optical Properties of Materials based on matrixing |
| CN108037078B (en) * | 2017-12-01 | 2020-12-25 | 中国计量科学研究院 | Method and system for measuring optical performance of material based on matrix transformation |
| CN110274889A (en) * | 2018-03-15 | 2019-09-24 | 南京大学 | Multi-channel terahertz spectrographic detection unit based on surface plasma body resonant vibration antenna |
| CN110274889B (en) * | 2018-03-15 | 2021-05-28 | 南京大学 | Multichannel terahertz spectrum detection unit based on surface plasma resonance antenna |
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Application publication date: 20170322 |