CN106841082B - Portable terahertz time-domain spectroscopy instrument - Google Patents
Portable terahertz time-domain spectroscopy instrument Download PDFInfo
- Publication number
- CN106841082B CN106841082B CN201710033171.8A CN201710033171A CN106841082B CN 106841082 B CN106841082 B CN 106841082B CN 201710033171 A CN201710033171 A CN 201710033171A CN 106841082 B CN106841082 B CN 106841082B
- Authority
- CN
- China
- Prior art keywords
- terahertz
- module
- plated
- gold
- mirror
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001328 terahertz time-domain spectroscopy Methods 0.000 title claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 38
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 238000012545 processing Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000001228 spectrum Methods 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims description 13
- 238000007747 plating Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 4
- 239000000523 sample Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009659 non-destructive testing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 239000002117 illicit drug Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 210000003462 vein Anatomy 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
- G01N21/3581—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared light; using Terahertz radiation
- G01N21/3586—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared light; using Terahertz radiation by Terahertz time domain spectroscopy [THz-TDS]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention provides a kind of portable terahertz time-domain spectroscopy instrument comprising: for exporting Terahertz pump light and detecting the femtosecond pulse light laser module of light；Optical path for controlling Terahertz transmission optical path is climbed module；For generating the terahertz sources module of terahertz pulse；For detecting the terahertz detection module for carrying sample terahertz light spectrum information；For acquiring and analyzing the data processing and instrument controlling module of terahertz time-domain spectroscopy data；And the power module for power supply.The present invention has the advantages that Terahertz transmission optical path is spatially designed as upper layer and lower layer foldable structure, significantly reduces the planar dimension of terahertz time-domain spectroscopy instrument using the design feature of gold-plated off axis paraboloidal mirror.
Description
Technical field
The present invention relates to a kind of portable terahertz time-domain spectroscopy instrument.Belong to novel terahertz time-domain spectroscopy apparatus structure skill
Art field.
Background technique
Terahertz (THz) wave is a particular frequency bands between infrared ray and millimeter wave, typically refers to frequency and exists
0.1THz to 10THz (1THz=1012Hz between).The special property of THz wave gives communication (broadband connections), radar, electricity
Sub- confrontation, ELECTROMAGNETIC WEAPON, astronomy, medical imaging (imaging of unmarked genetic test, cellular level), non-destructive testing, peace
The fields such as total inspection (inspection of biological) bring far-reaching influence.Terahertz pulse light source mainly has compared to conventional light source
There is the features such as transient state, coherence, broadband property, low energy, some materials penetrability, dactylogram.In the more than ten years in past, terahertz
Hereby application gradually penetrates into the fields such as physics, sensing, communication, life science.
Terahertz time-domain spectroscopic technology is one of main application of Terahertz, in non-destructive testing, illicit drugs inspection, grain seed selection
There is its unique advantage in terms of safety inspection.Currently, terahertz time-domain spectroscopic technology mostly uses greatly photoconductive antenna transmitting too
Hertz wave detects THz wave with the mode of photoconductive antenna or electro optic sampling.The former has compact structure, detection signal-to-noise ratio
High advantage；The advantages that direct impulse energy needed for the latter is low, highly sensitive and detective bandwidth.However, when current Terahertz
Domain spectral technique is built upon mostly inside laboratory, there is that system bulk is big, and portability is poor, and spectral detection speed
Slowly, the defects of complicated for operation.
Summary of the invention
In order to solve above-mentioned defect existing in the prior art, the purpose of the present invention is to provide a kind of portable Terahertzs
Time-domain spectroscopy instrument device.The device sample need to be only put into measurement module can to realize to sample rapid survey its transmission too
Hertz spectrum, while THz wave transmission optical path is carried out by space folding up and down using height plane mirror, it is greatly saved
Space structure provides new method for the portable design of terahertz time-domain spectroscopy instrument.
The present invention is achieved by the following technical solutions:
The present invention provides a kind of portable terahertz time-domain spectroscopy instrument comprising:
For exporting Terahertz pump light and detecting the femtosecond-pulse fiber laser module of light；
Optical path for controlling Terahertz transmission optical path is climbed module；
For generating the terahertz sources module of terahertz pulse；
For detecting the terahertz detection module for carrying sample terahertz light spectrum information；
For acquiring and analyzing the data processing and instrument controlling module of terahertz time-domain spectroscopy data；And
Power module for power supply；
The optical path climb module include beam splitter, the first plane mirror, the first gold-plated off axis paraboloidal mirror, second plating
Golden off axis paraboloidal mirror and example platform, the beam splitter are arranged in parallel with the first plane mirror vertical direction, and described first
Vertical parallel, the confocal setting of gold-plated off axis paraboloidal mirror and the second gold-plated off axis paraboloidal mirror, the example platform are set to the
At public focus between one gold-plated off axis paraboloidal mirror and the second gold-plated off axis paraboloidal mirror, femtosecond pulse passes through beam splitting
It is divided into pump light and detection light two parts after mirror, wherein the detection light is directly transmitted into terahertz detection from beam splitter
In module, the pump light is entered to inject in terahertz sources module by beam splitter front surface and the first plane mirror, described
The THz wave that terahertz sources module generates is incident on example platform by the first gold-plated off axis paraboloidal mirror convergence, then thoroughly
The THz wave penetrated is incident on the second gold-plated off axis paraboloidal mirror, and THz wave is finally by terahertz detection module collection.
Preferably, the terahertz sources module includes: that the first lens, the first photoconductive antenna, third are gold-plated
Off axis paraboloidal mirror and second plane mirror, second plane mirror setting is climbed module rear in optical path, with first
Lens, the first photoconductive antenna and the gold-plated off axis paraboloidal mirror of third are placed in same level, and pump light is climbed by optical path
After high module, after second plane mirror and the first lens, it is coupled on the first photoconductive antenna, gives off Terahertz
Wave, the first photoconductive antenna are placed on the THz wave given off in the focus of the gold-plated off axis paraboloidal mirror of third and plate by third
Incident entering light road is climbed in module after golden off axis paraboloidal mirror.
Preferably, the terahertz detection module includes: optical delay line, the second lens, the second photoconductive day
Line, the 4th gold-plated off axis paraboloidal mirror, lock-in amplifier and third plane mirror, all devices in terahertz detection module
It is all in same level with detection light, detection light first passes through third plane mirror and enters in optical delay line, then passes through
The second lens are crossed to be coupled into the second photoconductive antenna, into the THz wave in terahertz detection module by the 4th it is gold-plated from
Axis paraboloidal mirror collection is coupled into the second photoconductive antenna, and terahertz wave signal is converted into faint voltage signal.
Preferably, the data processing and instrument controlling module include: data collecting card and computer, for adopting
Collection and analysis voltage signal, obtain the terahertz light spectrum information of sample.
Preferably, the power module includes: the electricity of the power supply of femtosecond-pulse fiber laser, lock-in amplifier
Source, motor control box and control box power supply.
Compared with prior art, the present invention have it is following the utility model has the advantages that
1, using the design feature of gold-plated off axis paraboloidal mirror, Terahertz transmission optical path is spatially designed as upper and lower two
Layer foldable structure, significantly reduces the planar dimension of terahertz time-domain spectroscopy instrument；
2, the utilization of this upper layer and lower layer foldable structure, can also increase the internal capacity of terahertz time-domain spectroscopy instrument, can
More multiple instruments, such as lock-in amplifier, femtosecond-pulse fiber laser, power supply are integrated with instrument internal, instrument can be made full use of
Internal space；
3, THz wave after the focusing of gold-plated off axis paraboloidal mirror it is incident vertically downward on the test specimen, not only terahertz
Hereby wave measurement effect after over-focusing is more preferable, and sample can be horizontally arranged, and measurement powder, liquid etc. is suitble to be not easy to clamp
Sample, it is more convenient；
4, portable terahertz time-domain spectroscopy instrument uses modularized design, and same software control can be used in each module,
It is convenient to operate.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the schematic diagram of internal structure of the portable terahertz time-domain spectroscopy instrument of the present invention；
Fig. 2 is that optical path is climbed module assembled structural schematic diagram；
Fig. 3 is terahertz sources module assembled structural schematic diagram；
Fig. 4 is terahertz detection module assembled structural schematic diagram；
In figure: 1, femtosecond-pulse fiber laser module；2, optical path is climbed module；3, terahertz sources module；4, terahertz
Hereby detecting module；5, data processing and instrument controlling module；6, power module；21, beam splitter；22-1, the first plane mirror；
22-2, second plane mirror；22-3, third plane mirror；23, the first gold-plated off axis paraboloidal mirror；24, example platform；
25, the second gold-plated off axis paraboloidal mirror；32-1, the first lens；32-2, the second lens；33, the first photoconducting antenna；34, third is plated
Golden off axis paraboloidal mirror；42, the first optical delay line；43, the second optical delay line；45, the second photoconducting antenna；46, the 4th plating
Golden off axis paraboloidal mirror.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
The femtosecond-pulse fiber laser module that is related in the present invention, the optical delay line in terahertz detection module and
Lock-in amplifier etc. in data processing and instrument controlling module belongs to the prior art.
As shown in Figure 1 to 4, the portable terahertz time-domain spectroscopy instrument of the present invention is by femtosecond-pulse fiber laser module
1 (prior art can be femtosecond-pulse fiber laser), optical path are climbed module 2, terahertz sources module 3 (prior art,
Can be terahertz light conductance transmitting antenna), (prior art can be terahertz light conductance and receives day terahertz detection module 4
Line), data processing and instrument controlling module 5, power module 6 (prior art, lock-in amplifier are produced using FEMTO company,
Data collecting card use NI company USB6210) etc. composition.
Femtosecond-pulse fiber laser module 1 includes: a small-sized femtosecond-pulse fiber laser.By femtosecond-pulse fiber
Laser module 1 exports femtosecond pulse, and pump light and detection light two parts are divided into after the beam splitter 21 of 1:1.
As shown in Fig. 2, optical path is climbed, module 2 includes: the beam splitter 21 of one piece of 1:1, the first plane mirror 22-1, first
Gold-plated off axis paraboloidal mirror 23, the second gold-plated off axis paraboloidal mirror 25, example platform 24.The pump light is by beam splitter 21
Front surface is reflected vertically upward with 90 ° of angles, then by the first plane mirror 22-1 with right angle the light pulse propagated straight up
It being converted into propagating in the horizontal direction, beam splitter 21 and the first plane mirror 22-1 constitute pump light optical path height mirror, so that
Difference in height h is formed between pump light and detection light, spatially realizes optical path up and down folding.The detection light is from beam splitter
The part of 21 transmissions, enters in terahertz detection module 4 after transmission.
Terahertz sources module 3 includes: second plane mirror 22-2, the first lens 32-1, the first photoconductive antenna
33, the gold-plated off axis paraboloidal mirror 34 of third；Pump light is climbed by optical path after module, by second plane mirror 22-2 and
After first lens 32-1, it is coupled on the first photoconductive antenna 33, gives off THz wave.First photoconductive antenna 33 is placed
In the focus of the gold-plated off axis paraboloidal mirror 34 of third, THz wave that the gold-plated off axis paraboloidal mirror 34 of third gives off cone cell
It is shaped to plane wave.Terahertz plane wave is reflected by gold-plated 34 right angle of off axis paraboloidal mirror of third, is climbed in module 2 into optical path
Terahertz light path height mirror.
As shown in Fig. 2, the first gold-plated off axis paraboloidal mirror 23 and the second gold-plated off axis paraboloidal mirror 25 are along the vertical direction
Be parallel to each other placement, confocal each other.Terahertz plane wave is reflected down after the first paraboloidal mirror 23 by 90 ° of angles, propagation side
Become to by level along straight down, and focuses on example platform 24.Example platform 24 is horizontal positioned, puts sample to be tested
When it is more convenient, and there is an aperture in centre, THz wave can be made to pass through completely.From example platform 24 transmitted through come terahertz
Hereby using the second gold-plated off axis paraboloidal mirror 25, the direction of propagation becomes in the horizontal direction from straight down again, and return to
It detects in light same level height, finally enters in terahertz detection module 4.
Terahertz detection module 4 includes: third plane mirror 22-3, the first optical delay line 42 and the first optical delay
Line 43, the second lens 32-2, the second photoconductive antenna 45, the 4th gold-plated off axis paraboloidal mirror 46.It climbs to go out in module 2 from optical path
The 4th gold-plated off axis paraboloidal mirror that the Terahertz plane wave penetrated is placed with the second gold-plated 25 horizontal parallel of off axis paraboloidal mirror
46 collect, and focus and be incident on the silicon lens of the second photoconductive antenna 45.The detection light arteries and veins transmitted from 1:1 beam splitter 21
Punching is coupled into the first optical delay line 42 and the second optical delay line 43 after third plane mirror 22-3, then light
It learns the light pulse being emitted in delay line to focus by the second lens 32-2, is finally coupled on the second photoconductive antenna 45, generates
Photo-generated carrier.By the first optical delay line 42 of control and the second optical delay line 43, change the light path of detection optical path
Scanning probe goes out the time-domain signal of the transmission THz wave after sample.Terahertz detection module 4 will contain sample Terahertz
The THz wave of spectral information is converted into faint electric signal, and output electric signal is sent into data processing and instrument controlling module 5.
Data processing and instrument controlling module 5 include: data collecting card and a computer.It is exported from lock-in amplifier
Analog electrical signal be sent into after data collecting card A/D conversion in computer and carry out Fourier transformation, the data such as spectrum analysis
Processing, can be obtained the terahertz time-domain spectroscopy information of sample.In addition, have the software for controlling a full set of instrument work on computer,
Graphical control interface, it is easy to operate.
Power module 6 includes: the power supply of femtosecond-pulse fiber laser, the power supply and motor control box of lock-in amplifier and
Power supply.As shown in Figure 1, power module 6 is placed on the upper surface of femtosecond-pulse fiber laser module 1, instrument can be made full use of
Internal space, increases the utilization rate in instrument internal space, greatly reduces the planar dimension of instrument.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (5)
1. a kind of portable terahertz time-domain spectroscopy instrument characterized by comprising
For exporting Terahertz pump light and detecting the femtosecond-pulse fiber laser module of light；
Optical path for controlling Terahertz transmission optical path is climbed module；
For generating the terahertz sources module of terahertz pulse；
For detecting the terahertz detection module for carrying sample terahertz light spectrum information；
For acquiring and analyzing the data processing and instrument controlling module of terahertz time-domain spectroscopy data；And
Power module for power supply；
The optical path climb module include beam splitter, the first plane mirror, the first gold-plated off axis paraboloidal mirror, second it is gold-plated from
Axis paraboloidal mirror and example platform, the beam splitter are arranged in parallel with the first plane mirror vertical direction, and described first is gold-plated
Off axis paraboloidal mirror is set to the first plating with vertical parallel, the confocal setting of the second gold-plated off axis paraboloidal mirror, the example platform
At public focus between golden off axis paraboloidal mirror and the second gold-plated off axis paraboloidal mirror, femtosecond pulse is after beam splitter
It is divided into pump light and detection light two parts, wherein the detection light is directly transmitted into terahertz detection module from beam splitter
In, the pump light is entered to inject in terahertz sources module by beam splitter front surface and the first plane mirror, the terahertz
The THz wave that hereby transmitting module generates is incident on example platform by the first gold-plated off axis paraboloidal mirror convergence, is then transmitted
THz wave is incident on the second gold-plated off axis paraboloidal mirror, and THz wave is finally by terahertz detection module collection.
2. portable terahertz time-domain spectroscopy instrument as described in claim 1, which is characterized in that the terahertz sources module packet
It includes: the first lens, the first photoconductive antenna, the gold-plated off axis paraboloidal mirror of third and second plane mirror, second plane
Reflecting mirror setting is climbed module rear in optical path, with the first lens, the first photoconductive antenna and the gold-plated off axis paraboloidal mirror of third
It being placed in same level, pump light is climbed by optical path after module, after second plane mirror and the first lens, quilt
It is coupled on the first photoconductive antenna, gives off THz wave, the first photoconductive antenna is placed on the gold-plated off axis paraboloid mirror of third
It climbs in module on the THz wave given off in the focus of mirror incident entering light road after the gold-plated off axis paraboloidal mirror of third.
3. portable terahertz time-domain spectroscopy instrument as described in claim 1, which is characterized in that the terahertz detection module packet
Include: optical delay line, the second lens, the second photoconductive antenna, the 4th gold-plated off axis paraboloidal mirror, lock-in amplifier and third are flat
Face reflecting mirror, all devices in terahertz detection module all be in same level with detection light, are detected light and are first passed through the
Three plane mirrors enter in optical delay line, are then coupled into the second photoconductive antenna by the second lens, into too
THz wave in hertz detecting module is coupled into the second photoconductive antenna by the 4th gold-plated off axis paraboloidal mirror collection, will too
Hertz wave signal is converted into faint voltage signal.
4. portable terahertz time-domain spectroscopy instrument as described in claim 1, which is characterized in that the data processing and instrument control
Molding block includes: data collecting card and computer, and for acquiring and analyzing voltage signal, the tera-hertz spectra for obtaining sample is believed
Breath.
5. portable terahertz time-domain spectroscopy instrument as described in claim 1, which is characterized in that the power module includes: winged
The power supply of pulse per second (PPS) optical fiber laser, the power supply of lock-in amplifier, motor control box and control box power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033171.8A CN106841082B (en) | 2017-01-18 | 2017-01-18 | Portable terahertz time-domain spectroscopy instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033171.8A CN106841082B (en) | 2017-01-18 | 2017-01-18 | Portable terahertz time-domain spectroscopy instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106841082A CN106841082A (en) | 2017-06-13 |
| CN106841082B true CN106841082B (en) | 2019-09-10 |
Family
ID=59123634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710033171.8A Active CN106841082B (en) | 2017-01-18 | 2017-01-18 | Portable terahertz time-domain spectroscopy instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106841082B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181261A (en) * | 2017-12-27 | 2018-06-19 | 上海理工大学 | Device based on terahertz time-domain spectroscopy detection mixed gas each component content |
| CN109556714A (en) * | 2018-10-31 | 2019-04-02 | 中国科学院半导体研究所 | Terahertz light spectrum chip |
| CN111024622B (en) * | 2019-11-28 | 2022-04-22 | 北京遥测技术研究所 | Compact detection system for realizing handheld terahertz reflection spectrum detection |
| CN111751317A (en) * | 2020-07-09 | 2020-10-09 | 上海理工大学 | Novel method and system for determining components of gynostemma pentaphylla by utilizing terahertz spectrum technology |
| CN112326588A (en) * | 2020-10-27 | 2021-02-05 | 欧必翼太赫兹科技(北京)有限公司 | Terahertz time-domain spectrograph |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201662531U (en) * | 2010-01-14 | 2010-12-01 | 首都师范大学 | Small-sized Terahertz time-domain spectrograph |
| CN104406942A (en) * | 2014-11-17 | 2015-03-11 | 浙江大学 | Multi-mode laser-induced breakdown spectroscopy device |
| CN105738314A (en) * | 2016-01-12 | 2016-07-06 | 浙江大学 | Portable terahertz spectrum detection device and detection method |
| US9400214B1 (en) * | 2013-03-15 | 2016-07-26 | Joseph R. Demers | Terahertz frequency domain spectrometer with a single photoconductive element for terahertz signal generation and detection |
| CN105891144A (en) * | 2016-03-31 | 2016-08-24 | 上海理工大学 | Terahertz scanning system and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5388166B2 (en) * | 2008-09-02 | 2014-01-15 | 国立大学法人東北大学 | Terahertz wave generator and method |
-
2017
- 2017-01-18 CN CN201710033171.8A patent/CN106841082B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201662531U (en) * | 2010-01-14 | 2010-12-01 | 首都师范大学 | Small-sized Terahertz time-domain spectrograph |
| US9400214B1 (en) * | 2013-03-15 | 2016-07-26 | Joseph R. Demers | Terahertz frequency domain spectrometer with a single photoconductive element for terahertz signal generation and detection |
| CN104406942A (en) * | 2014-11-17 | 2015-03-11 | 浙江大学 | Multi-mode laser-induced breakdown spectroscopy device |
| CN105738314A (en) * | 2016-01-12 | 2016-07-06 | 浙江大学 | Portable terahertz spectrum detection device and detection method |
| CN105891144A (en) * | 2016-03-31 | 2016-08-24 | 上海理工大学 | Terahertz scanning system and method |
Non-Patent Citations (1)
| Title |
|---|
| 便携式太赫兹时域光谱仪的研制;赵自然等;《太赫兹科学与电子信息学报》;20130228;第57-61页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106841082A (en) | 2017-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106841082B (en) | Portable terahertz time-domain spectroscopy instrument | |
| CN2874476Y (en) | Terahertz time domain spectral instrument based on optical rectification | |
| CN106441580B (en) | The incident terahertz time-domain spectroscopy instrument for surveying transmission and reflection simultaneously of variable-angle | |
| CN201662531U (en) | Small-sized Terahertz time-domain spectrograph | |
| US9194796B2 (en) | Concealed dangerous articles detection method and device | |
| CN102175662B (en) | Portable Terahertz remote sensing detector and remote detection method | |
| CN105784634A (en) | Terahertz time domain spectrograph capable of measuring transmission and reflection simultaneously under vertical incidence | |
| CN105699317A (en) | Terahertz time-domain spectrograph capable of entering at fixed angle and simultaneously detecting transmission and reflection | |
| US20200249156A1 (en) | Advanced thz system and method | |
| CN105738314B (en) | A kind of portable Terahertz spectrum detection device and detection method | |
| CN103743681B (en) | Terahertz spectrograph and terahertz transceiver probe | |
| CN107462546A (en) | Multi-functional terahertz time-domain spectroscopy imaging device based on femtosecond laser | |
| Hunsche et al. | New dimensions in T-ray imaging | |
| CN106323907A (en) | Optical fiber coupling terahertz time-domain spectroscopy testing system | |
| CN104132911A (en) | Open type long optical distance CO and CH4 online testing instrument | |
| CN105866061B (en) | The anticoincidence pulse detection device and anticoincidence pulse detection method of THz wave time-domain information | |
| CN103499392A (en) | TeraHertz-wave far-field detection super-diffraction resolution imaging instrument | |
| CN206945533U (en) | Minimize terahertz time-domain spectroscopy instrument | |
| CN2938081Y (en) | Pocket near-infrared fibre-optical spectral device | |
| CN201725011U (en) | Alternating Current (AC) measuring device of solar battery quantum efficiency | |
| CN203489968U (en) | Terahertz wave far field detection super diffraction resolution imager | |
| CN109142266A (en) | A kind of Terahertz finely composes survey meter | |
| CN101871992A (en) | Alternating current measuring device for quantum efficiency of solar battery and using method thereof | |
| CN116448711A (en) | Terahertz near-field microscope capable of being combined with fluorescence and application method thereof | |
| Murayama et al. | A polychromator-type near-infrared spectrometer with a high-sensitivity and high-resolution photodiode array detector for pharmaceutical process monitoring on the millisecond time scale |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180425 Address after: 200237 District 2319, room 69, Lane 1985, Chunshen Road, Minhang District, Shanghai 1 district. Applicant after: Shanghai Langyan Optoelectronics Technology Co.,Ltd. Applicant after: East China Normal University Address before: 200237 District 2319, room 69, Lane 1985, Chunshen Road, Minhang District, Shanghai 1 district. Applicant before: Shanghai Langyan Optoelectronics Technology Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211013 Address after: Room 4001, building 21, No. 123, Lane 1165, Jindu Road, Minhang District, Shanghai 201100 Patentee after: SHANGHAI LANGYAN OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Patentee after: Chongqing Research Institute of East China Normal University Address before: 200237 District 2319, room 69, Lane 1985, Chunshen Road, Minhang District, Shanghai 1 district. Patentee before: SHANGHAI LANGYAN OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Patentee before: EAST CHINA NORMAL University |
|
| TR01 | Transfer of patent right |