CN206114113U - Automatically controlled light sampling system and terahertz be time domain spectrum appearance now - Google Patents
Automatically controlled light sampling system and terahertz be time domain spectrum appearance now Download PDFInfo
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- CN206114113U CN206114113U CN201621048835.5U CN201621048835U CN206114113U CN 206114113 U CN206114113 U CN 206114113U CN 201621048835 U CN201621048835 U CN 201621048835U CN 206114113 U CN206114113 U CN 206114113U
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- 238000005070 sampling Methods 0.000 title abstract description 9
- 238000001228 spectrum Methods 0.000 title abstract 2
- 239000000835 fiber Substances 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 36
- 238000005086 pumping Methods 0.000 claims description 33
- 230000005540 biological transmission Effects 0.000 claims description 20
- 238000001328 terahertz time-domain spectroscopy Methods 0.000 claims description 17
- 239000013307 optical fiber Substances 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 13
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 claims description 4
- KXNLCSXBJCPWGL-UHFFFAOYSA-N [Ga].[As].[In] Chemical compound [Ga].[As].[In] KXNLCSXBJCPWGL-UHFFFAOYSA-N 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 4
- 230000009123 feedback regulation Effects 0.000 claims description 3
- 229910052691 Erbium Inorganic materials 0.000 claims description 2
- 210000001367 artery Anatomy 0.000 claims description 2
- 229910052790 beryllium Inorganic materials 0.000 claims description 2
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 2
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical group [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 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
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Abstract
The utility model is suitable for a terahertz is technical field now, provides an automatically controlled light sampling system and terahertz be time domain spectrum appearance now, wherein, automatically controlled light sampling system include firstly fly a second pulse laser, the second flies a second pulse laser, first beam splitter, second beam splitter, a photoelectric sensor, the 2nd photoelectric sensor, phase detector, function generator, adder and PID regulator, first beam splitter is connected with the first second pulse laser that flies through optic fibre, and the second beam splitter flies a second pulse laser through optic fibre and second to be connected, and the second flies a second pulse laser and includes piezoelectric sensor, and a photoelectric sensor and the 2nd photoelectric sensor all are connected with phase detector, and phase detector, function generator and PID regulator all are connected with the adder, and the PID regulator still is connected with piezoelectric sensor. The utility model discloses an adopt automatically controlled light sampling system to realize time domain scanning, can effectively guarantee the stability of beam propagation direction, the chromatic dispersion is little, scanning speed is fast.
Description
Technical field
This utility model belongs to Terahertz Technology field, more particularly to a kind of automatically controlled smooth sampler and terahertz time-domain light
Spectrometer.
Background technology
Terahertz time-domain spectroscopy instrument can carry out coherent measurement to Terahertz electric field, can obtain sample complex refractivity index,
The parameter such as dielectric constant and electrical conductivity, can obtain the physical chemistry information of sample, with important by analyzing these parameters
Application prospect.
However, existing terahertz time-domain spectroscopy instrument generally adopts mechanical delay device (step motor control linear translation
Platform) realizing phase delay control, have that direction of beam propagation is unstable, there is change in spot size, scanning due to dispersion
The shortcomings of speed is slow.
Utility model content
The purpose of this utility model is to provide a kind of automatically controlled smooth sampler and terahertz time-domain spectroscopy instrument, it is intended to solved
Existing terahertz time-domain spectroscopy instrument realizes phase place generally using mechanical delay device (step motor control linear translation platform)
, there is the shortcomings of direction of beam propagation is unstable, and spot size has change due to dispersion, scanning speed is slow in delays time to control
Problem.
This utility model is achieved in that a kind of automatically controlled smooth sampler, it include the first femtosecond pulse laser, the
Two femtosecond pulse lasers, the first beam splitter, the second beam splitter, the first photoelectric sensor, the second photoelectric sensor, phase detection
Device, functional generator, adder and PID regulator；
First beam splitter is connected with first femtosecond pulse laser by optical fiber, and second beam splitter passes through
Optical fiber is connected with second femtosecond pulse laser, and second femtosecond pulse laser includes piezoelectric transducer, and described
One photoelectric sensor and second photoelectric sensor are connected with the phase detector, the phase detector, the letter
Number generator and the PID regulator are connected with the adder, and the PID regulator is also connected with the piezoelectric transducer
Connect；
First femtosecond pulse laser launches pumping pulse, and the pumping pulse beam splitting is by first beam splitter
Transmission pumping pulse and reflection pumping pulse, wherein, the reflection pumping pulse is launched to first photoelectric sensor；It is described
The reflection pumping pulse is converted to the first electric impulse signal and passes to the phase detector by the first photoelectric sensor；
The functional generator output phase modulated signal, the piezoelectric transducer are adjusted according to the phase modulated signal
The cavity length of second femtosecond pulse laser, controls the second femtosecond pulse laser transmitting and the pumping pulse
Between exist preset phase difference direct impulse, second beam splitter by the direct impulse beam splitting be transmission detection pulse and
Reflection direct impulse, wherein, the reflection direct impulse is launched to second photoelectric sensor；Second photoelectric sensor
The reflection direct impulse is converted to the second electric impulse signal and passes to the phase detector；
It is poor that the phase detector detects the preset phase, and generates linearly positively related electricity poor with the preset phase
Pressure signal；The functional generator persistently exports the phase modulated signal, and the adder is by the voltage signal and described
Export to the PID regulator after phase modulated signal superposition；The PID regulator is carried out to the signal that the adder is exported
Export after calibrating for error to the piezoelectric transducer, the piezoelectric transducer is fed back according to the signal that the PID regulator is exported
Adjust the cavity length of second femtosecond pulse laser.
This utility model also provides a kind of terahertz time-domain spectroscopy instrument, and the terahertz time-domain spectroscopy instrument includes as mentioned above
Automatically controlled smooth sampler, also including terahertz emission device, collimation focusing lens group, terahertz detection device and data processing
Module；
The data processing module is connected with the functional generator and the terahertz detection device, the Terahertz spoke
Injection device is connected with first beam splitter by optical fiber, and the terahertz detection device passes through optical fiber and second beam splitter
Connection；
The terahertz emission device receives the transmission pumping pulse, and is transmitted pumping pulse exciting radiation too by described
Hertz wave；The collimation lens set is collimated and is focused on to the THz wave, and is sent to the terahertz detection device；
The terahertz detection device receives the transmission detection pulse, and the transmission detection pulse and the THz wave are converted into
Current signal, the data processing module are triggered by the functional generator, and the current signal is processed as digital signal.
Compared with prior art, its advantage is this utility model：
Realize that by using automatically controlled smooth sampler time domain is scanned, can effectively ensure that the stable of direction of beam propagation, color
Dissipate little, scanning speed fast.
Description of the drawings
Fig. 1 is the structured flowchart of the automatically controlled smooth sampler that this utility model embodiment is provided；
Fig. 2 is the structured flowchart of the terahertz time-domain spectroscopy instrument that this utility model embodiment is provided.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit this utility model.
Automatically controlled smooth sampler in this utility model refers to sample (ECOPS, Electronically based on automatically controlled light
Controlled Optical Sampling) technology hardware system, following embodiment is based on the technology and realizes.
As shown in figure 1, the automatically controlled smooth sampler 100 that the present embodiment is provided includes the first femtosecond pulse laser 1, second
Femtosecond pulse laser 2, the first beam splitter 3, the second beam splitter 4, the first photoelectric sensor 5, the second photoelectric sensor 6, phase place
Detector 7, functional generator 8, adder 9 and PID (ratio (proportion), integration (integration), differential
(differentiation)) actuator 10.
In the present embodiment, the first beam splitter 3 is connected with the first femtosecond pulse laser 1 by optical fiber 12, the second beam splitter 4
It is connected with the second femtosecond pulse laser 2 by optical fiber 13, the second femtosecond pulse laser 2 includes piezoelectric transducer 21, first
Photoelectric sensor 5 and the second photoelectric sensor 6 are connected with phase detector 7, phase detector 7, functional generator 8 and PID
Actuator 10 is connected with adder 9, and PID is adjusted 10 devices and is also connected with piezoelectric transducer 21, and in figure, hollow arrow represents light path
Transmission direction, filled arrows represent electric signal transmission direction.
In a particular application, the first femtosecond pulse laser 1 and the second femtosecond pulse laser 2 can select er-doped light
Fibre laser, in the present embodiment, the first femtosecond pulse laser 1 and the second femtosecond pulse laser 2 select centre wavelength
The erbium doped fiber laser that 1560nm, repetition rate are 100MHZ, pulse power is 140mW.
In the present embodiment, the first photoelectric sensor 5 and the second photoelectric sensor 6 are photodiode.
In the present embodiment, the transflection ratio of the first beam splitter 3 and the second beam splitter 4 is 9:1, i.e., through the first beam splitter
3 and second beam splitter 4 transmitted pulse energy more than the pulse reflected by the first beam splitter 3 and the second beam splitter 4 energy.
In a particular application, optical fiber 12 and optical fiber 13 adopt polarization-maintaining single-mode fiber, it is ensured that light path is not stably trembled
It is dynamic.
The operation principle of the automatically controlled smooth sampler 100 provided by the present embodiment is：
First femtosecond pulse laser 1 launches pumping pulse, and pumping pulse beam splitting is transmission pumping arteries and veins by the first beam splitter 3
Punching and reflection pumping pulse, wherein, the reflection pumping pulse is launched to the first photoelectric sensor 5；First photoelectric sensor 5 will
The reflection pumping pulse is converted to the first electric impulse signal and passes to phase detector 7；
8 output phase modulated signal of functional generator, piezoelectric transducer 21 adjust second according to the phase modulated signal
The cavity length of femtosecond pulse laser 2, the second femtosecond pulse laser 2 of control is launched to be present in advance and the pumping pulse between
If the direct impulse of phase contrast, the direct impulse beam splitting is transmission detection pulse and reflects direct impulse by the second beam splitter 4,
Wherein, the reflection direct impulse is launched to the second photoelectric sensor 6；Second photoelectric sensor 6 is by the reflection direct impulse
Be converted to the second electric impulse signal and pass to phase detector 7；
It is poor that phase detector 7 detects the preset phase, and generates linearly positively related voltage poor with the preset phase
Signal；Functional generator 8 continues output phase modulated signal, and adder 9 is by the voltage signal and the phase modulated signal
Export after superposition to PID regulator 10；PID regulator 10 is exported to pressure after calibrating for error to the signal that adder 9 is exported
Electric transducer 21, the second femtosecond pulse laser of signal feedback regulation 2 that piezoelectric transducer 21 is exported according to PID regulator 10
Cavity length, to adjust the phase place of the direct impulse, and then adjusts direct impulse the prolonging relative to the pumping pulse
When the time.
In the present embodiment, the pumping pulse and the direct impulse are femto-second laser pulse, in the present embodiment are only
In order to distinguish to the pulse of same nature, and using different names.
In a particular application, when 8 no output phase modulated signal of functional generator is to adder 9, automatically controlled light sampling
It is 90 degree that system 100 can lock the phase contrast between the first femtosecond pulse laser 1 and the second femtosecond pulse laser 2；Work as letter
Number generator 8 provides the phase modulated signal V ofoffsetWhen (offset voltage), automatically controlled smooth sampler 100 can then lock
Phase contrast between one femtosecond pulse laser 1 and the second femtosecond pulse laser 2 is ΔΦ, makes phase detector 7 export one
Individual voltage signal-Voffset, it is 0 (V so as to ensure that adder 9 is exported to the signal of PID regulator 10offset+(-Voffset)=
0)。
Based on above-mentioned automatically controlled smooth sampler, phase modulated signal VoffsetWith the functional relationship between phase contrast ΔΦ
Expression formula is：
Voffset(t)=A0cos(ΔΦ(t))； (1)
Wherein, A0It is the coefficient related to the measuring condition of phase contrast ΔΦ；
The expression formula of the functional relationship between time delayses τ (t) and phase contrast ΔΦ is：
τ (t)=ΔΦ (t)/2 π f； (2)
Wherein, repetition rates of the f for laser instrument；
Can be obtained by formula (1) and formula (2), time delayses τ (t) and phase modulated signal VoffsetBetween functional relation be：
τ (t)=cos-1(Voffset(t)/A0)/2πf。 (3)
From prolonging between the signal of formula (3), the first femtosecond pulse laser 1 and the output of the second femtosecond pulse laser
The phase modulated signal of the output of time difference function generator 8 is relevant, therefore it may only be necessary to adjust the phase place of the output of functional generator 8
The frequency of signal processed, amplitude scalable, it is possible to realize defeated to the first femtosecond pulse laser 1 and the second femtosecond pulse laser
The control of the phase contrast between the signal for going out, so as to realize to the first femtosecond pulse laser 1 and the second femtosecond pulse laser
The control of the delay time between the signal of output.
In the present embodiment, change of cavity length scope of second femtosecond pulse laser 2 relative to the first femtosecond pulse laser 1
For [- 120nm ,+120nm], the time delay of 0.4fs is capable of achieving, the rate of scanning of system can be effectively improved.
The present embodiment, is adopted using two femto-second laser output laser pulses by providing a kind of automatically controlled smooth sampler
Phase modulated signal is provided with functional generator, and the signal of two femtosecond pulse laser radiation is controlled using piezoelectric transducer
Phase contrast, compared with traditional mechanical delay device, can effectively ensure that the stable of direction of beam propagation, dispersion be little, scanning is fast
Degree is fast.
As shown in Fig. 2 the present embodiment provides a kind of terahertz time-domain spectroscopy instrument, including above-mentioned automatically controlled smooth sampler
100, also including terahertz emission device 14, collimation focusing lens group, terahertz detection device 15 and data processing module 19.
Wherein, 19 function generator 8 of data processing module and terahertz detection device 15 connect, terahertz emission device
14 are connected with the first beam splitter 3 by optical fiber 12, and terahertz detection device 15 is connected with the second beam splitter 4 by optical fiber 13.
In a particular application, terahertz emission device 14 includes that the indium gallium arsenide photoelectric that can increase carrier mobility leads day
Line, what terahertz detection device 15 included reducing carrier mobility mix beryllium indium gallium arsenide photoelectric lead antenna.
The operation principle of terahertz time-domain spectroscopy instrument that the present embodiment is provided is：
Terahertz emission device 14 is received by the transmission pumping pulse of 3 outgoing of the first beam splitter, and by transmission pumping pulse
Exciting radiation THz wave；Collimation lens set is collimated to THz wave and is focused on, and is sent to terahertz detection device 15；
Terahertz detection device 15 is received by the transmission detection pulse of 4 outgoing of the second beam splitter, by transmission detection pulse and THz wave
Current signal is converted into, data processing module 19 is triggered by functional generator 8, and current signal is processed as digital signal.
In the present embodiment, automatically controlled smooth sampler 100 also includes being connected between PID regulator 11 and piezoelectric transducer 21
The first signal amplifier 11, the first signal amplifier be used for amplify PID regulator 11 output signal and pass to piezoelectricity biography
Sensor 21.
In the present embodiment, collimation focusing lens group includes the first off axis paraboloidal mirror 16 and the second off axis paraboloidal mirror 17,
Wherein, the first off axis paraboloidal mirror 16 for terahertz emission device 14 is radiated THz wave collimation after be transmitted to second from
Axis paraboloidal mirror 17, the second off axis paraboloidal mirror 17 is for focusing to terahertz detection device 15 by the THz wave after collimation
Photosurface.
In the present embodiment, data processing module 19 includes secondary signal amplifier 191 and digital converter 192；
Secondary signal amplifier 191 is connected with terahertz detection device 15, is exported for amplifying terahertz detection device 15
Current signal and export to digital converter 192；Digital converter 192 and secondary signal amplifier 192 and functional generator 8
Current signal after amplification, for being triggered by functional generator 8, is processed as digital signal by connection.
In a particular application, the digital signal can be binary signal.
In a particular application, automatically controlled smooth sampler 100 can with it is integrally disposed be a single module, terahertz emission
Device 14, collimation focusing lens group and terahertz detection device 15 can also be integrated into the single module of, two modules
Between signal transmission is realized by optical fiber connection, the current signal for then exporting terahertz detection device 15 by cable is passed
Being defeated by data processing module 19 carries out data processing, so as to the modularity for realizing terahertz time-domain spectroscopy instrument is arranged, simplifies structure,
Beneficial to installation and maintenance.
One embodiment of this utility model also provides a kind of automatically controlled smooth sampling method, and the method is based on above-mentioned automatically controlled light sampling
System or above-mentioned terahertz time-domain spectroscopy instrument realize that methods described includes：
First femto-second laser launches pumping pulse；
Functional generator output phase modulated signal；
Piezoelectric transducer adjusts the cavity length of second femto-second laser according to the phase modulated signal, controls institute
State the direct impulse that there is preset phase difference between the transmitting of the second femtosecond pulse laser and the pumping pulse；
The phase detector detection preset phase is poor, and generates linear positively related voltage letter poor with the preset phase
Number；
Functional generator persistently exports the phase modulated signal；
Adder will be exported to PID regulator after the voltage signal and phase modulated signal superposition；
The PID regulator detects whether the signal of its input is 0；
If it is not, the then piezoelectric transducer second femtosecond according to the signal feedback regulation that the PID regulator is exported
The cavity length of pulse laser, to adjust the phase place of the direct impulse.
This utility model embodiment is realized to electricity using software control method by providing a kind of automatically controlled smooth sampling method
The delays time to control of control light sampler, improves the rate of scanning of system.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in this utility model
Protection domain within.
Claims (9)
1. a kind of automatically controlled smooth sampler, it is characterised in that the automatically controlled smooth sampler include the first femtosecond pulse laser,
Second femtosecond pulse laser, the first beam splitter, the second beam splitter, the first photoelectric sensor, the second photoelectric sensor, phase place are visited
Survey device, functional generator, adder and PID regulator；
First beam splitter is connected with first femtosecond pulse laser by optical fiber, and second beam splitter passes through optical fiber
It is connected with second femtosecond pulse laser, second femtosecond pulse laser includes piezoelectric transducer, first light
Electric transducer and second photoelectric sensor are connected with the phase detector, and the phase detector, the function are sent out
Raw device and the PID regulator are connected with the adder, and the PID regulator is also connected with the piezoelectric transducer；
First femtosecond pulse laser launches pumping pulse, and the pumping pulse beam splitting is transmission by first beam splitter
Pumping pulse and reflection pumping pulse, wherein, the reflection pumping pulse is launched to first photoelectric sensor；Described first
The reflection pumping pulse is converted to the first electric impulse signal and passes to the phase detector by photoelectric sensor；
The functional generator output phase modulated signal, the piezoelectric transducer is according to the phase modulated signal is adjusted
The cavity length of the second femtosecond pulse laser, controls between the second femtosecond pulse laser transmitting and the pumping pulse
There is the direct impulse of preset phase difference, the direct impulse beam splitting is transmission detection pulse and reflection by second beam splitter
Direct impulse, wherein, the reflection direct impulse is launched to second photoelectric sensor；Second photoelectric sensor is by institute
State reflection direct impulse to be converted to the second electric impulse signal and pass to the phase detector；
It is poor that the phase detector detects the preset phase, and generate linearly positively related voltage poor with the preset phase and believe
Number；The functional generator persistently exports the phase modulated signal, and the adder is by the voltage signal and the phase place
Export to the PID regulator after modulated signal superposition；The PID regulator carries out error to the signal that the adder is exported
The signal feedback regulation exported according to the PID regulator to the piezoelectric transducer, the piezoelectric transducer is exported after calibration
The cavity length of second femtosecond pulse laser.
2. automatically controlled smooth sampler as claimed in claim 1, it is characterised in that the automatically controlled smooth sampler also includes connection
The first signal amplifier between PID regulator and the piezoelectric transducer.
3. automatically controlled smooth sampler as claimed in claim 1, it is characterised in that first femtosecond pulse laser and described
Second femtosecond pulse laser is erbium doped fiber laser.
4. automatically controlled smooth sampler as claimed in claim 1, it is characterised in that the energy of the transmission pumping pulse is more than institute
The energy of reflection pumping pulse is stated, the energy of the transmission detection pulse detects the energy of arteries and veins more than the reflection.
5. automatically controlled smooth sampler as claimed in claim 1, it is characterised in that first photoelectric sensor and described second
Photoelectric sensor is photodiode.
6. a kind of terahertz time-domain spectroscopy instrument, it is characterised in that the terahertz time-domain spectroscopy instrument is included such as Claims 1 to 5
Automatically controlled smooth sampler described in any one, also including terahertz emission device, collimation focusing lens group, terahertz detection device
And data processing module；
The data processing module is connected with the functional generator and the terahertz detection device, the terahertz emission dress
Put and be connected with first beam splitter by optical fiber, the terahertz detection device is connected with second beam splitter by optical fiber
Connect；
The terahertz emission device receives the transmission pumping pulse, and by the transmission pumping pulse exciting radiation Terahertz
Ripple；The collimation focusing lens group is collimated and is focused on to the THz wave, and is sent to the terahertz detection device；
The terahertz detection device receives the transmission detection pulse, and the transmission detection pulse and the THz wave are converted into
Current signal, the data processing module are triggered by the functional generator, and the current signal is processed as digital signal.
7. terahertz time-domain spectroscopy instrument as claimed in claim 6, it is characterised in that the terahertz emission device includes increasing
The indium gallium arsenide photoelectric lead antenna of big carrier mobility, the terahertz detection device include reducing carrier mobility
Mix beryllium indium gallium arsenide photoelectric lead antenna.
8. terahertz time-domain spectroscopy instrument as claimed in claim 6, it is characterised in that the collimation focusing lens group includes first
Off axis paraboloidal mirror and the second off axis paraboloidal mirror；
First off axis paraboloidal mirror will the THz wave collimate after be transmitted to second off axis paraboloidal mirror, described the
THz wave after the collimation is focused to two off axis paraboloidal mirrors the photosurface of the terahertz detection device.
9. terahertz time-domain spectroscopy instrument as claimed in claim 6, it is characterised in that the data processing module includes：
The secondary signal amplifier being connected with the terahertz detection device；And
The digital converter being connected with the secondary signal amplifier and the functional generator.
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| CN201621048835.5U CN206114113U (en) | 2016-09-09 | 2016-09-09 | Automatically controlled light sampling system and terahertz be time domain spectrum appearance now |
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| CN201621048835.5U CN206114113U (en) | 2016-09-09 | 2016-09-09 | Automatically controlled light sampling system and terahertz be time domain spectrum appearance now |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323469A (en) * | 2016-09-09 | 2017-01-11 | 华讯方舟科技有限公司 | Electronically controlled optical sampling system, method and terahertz time-domain spectrometer |
| WO2018045778A1 (en) * | 2016-09-09 | 2018-03-15 | 深圳市太赫兹系统设备有限公司 | Electrically controlled optical sampling system and terahertz time-domain spectrometer |
| CN109244798A (en) * | 2018-09-29 | 2019-01-18 | 北京无线电计量测试研究所 | A kind of Terahertz frequency comb generation device and method |
| CN109374140A (en) * | 2018-12-25 | 2019-02-22 | 北京无线电计量测试研究所 | A kind of electro-optic sampling method and device with high time resolution power |
| CN110718836A (en) * | 2019-11-04 | 2020-01-21 | 华东师范大学重庆研究院 | Terahertz generation device based on nano-bubble induction |
-
2016
- 2016-09-09 CN CN201621048835.5U patent/CN206114113U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323469A (en) * | 2016-09-09 | 2017-01-11 | 华讯方舟科技有限公司 | Electronically controlled optical sampling system, method and terahertz time-domain spectrometer |
| WO2018045777A1 (en) * | 2016-09-09 | 2018-03-15 | 华讯方舟科技有限公司 | Electrically-controlled optical sampling system and method, and terahertz time domain spectrometer |
| WO2018045778A1 (en) * | 2016-09-09 | 2018-03-15 | 深圳市太赫兹系统设备有限公司 | Electrically controlled optical sampling system and terahertz time-domain spectrometer |
| CN109244798A (en) * | 2018-09-29 | 2019-01-18 | 北京无线电计量测试研究所 | A kind of Terahertz frequency comb generation device and method |
| CN109374140A (en) * | 2018-12-25 | 2019-02-22 | 北京无线电计量测试研究所 | A kind of electro-optic sampling method and device with high time resolution power |
| CN110718836A (en) * | 2019-11-04 | 2020-01-21 | 华东师范大学重庆研究院 | Terahertz generation device based on nano-bubble induction |
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