CN108683059B - System and method for generating high-intensity broadband terahertz waves by utilizing liquid column - Google Patents
System and method for generating high-intensity broadband terahertz waves by utilizing liquid column Download PDFInfo
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- CN108683059B CN108683059B CN201810587765.8A CN201810587765A CN108683059B CN 108683059 B CN108683059 B CN 108683059B CN 201810587765 A CN201810587765 A CN 201810587765A CN 108683059 B CN108683059 B CN 108683059B
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- 239000007788 liquid Substances 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000005855 radiation Effects 0.000 claims abstract description 49
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000005086 pumping Methods 0.000 claims abstract description 11
- 230000003287 optical effect Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000007921 spray Substances 0.000 claims description 19
- 239000004816 latex Substances 0.000 claims description 10
- 229920000126 latex Polymers 0.000 claims description 10
- 239000013078 crystal Substances 0.000 claims description 8
- 229910007709 ZnTe Inorganic materials 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000001228 spectrum Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 210000002381 plasma Anatomy 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal 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
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S1/00—Masers, i.e. devices using stimulated emission of electromagnetic radiation in the microwave range
- H01S1/04—Masers, i.e. devices using stimulated emission of electromagnetic radiation in the microwave range liquid
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a system and a method for generating high-intensity broadband terahertz waves by utilizing a liquid column, wherein the system comprises a laser, a spectroscope, a chopper, a first off-axis parabolic reflector and the liquid column which are sequentially arranged on an optical path, wherein the system comprises the following components: the focal length of the first off-axis parabolic reflector is 1 inch, the direction of the liquid column is vertical downward, the laser is used for emitting a horizontal polarized laser beam, the horizontal polarized laser beam is divided into a beam of pumping light and a beam of detection light after passing through the spectroscope, the pumping light is modulated by the chopper and then focused on the liquid column through the first off-axis parabolic reflector, and a terahertz wave radiation source capable of radiating high-intensity broadband terahertz waves is formed at the liquid column. The invention uses the liquid column to generate the terahertz wave, has high generation efficiency, simple system structure, low construction cost, easy maintenance and high stability, makes up the blank in the technical field of the generation of the high-intensity broadband terahertz wave at present, and has stronger scientific research and practical application values.
Description
Technical Field
The invention relates to the technical field of terahertz waves, in particular to a system and a method for generating high-intensity broadband terahertz waves by using a liquid column.
Background
In recent years, with research on terahertz radiation sources, a large number of research results have demonstrated that solid crystals, metallic materials, gases or plasmas are all good terahertz radiation sources. However, using liquids, especially liquidThere have been few studies on the generation of terahertz waves by water or its plasma. In fact, liquid water has been studied for more than 10 years as a source of various electromagnetic waves. For example: the nonlinear process of focusing ultra-short pulse laser light onto water contained in cells, jets or droplets produces higher harmonics and white light. Furthermore, the kinetics of liquid water irradiated by laser pulses have been studied for over two decades. The reason for impeding liquid water as a terahertz radiation source may be because liquid water has very strong absorption characteristics in the terahertz frequency range. The power absorption coefficient of liquid water at 1 terahertz is about 220cm -1 Meaning 3.6X10 9 Terahertz photons enter a water film with the thickness of 1mm, only one photon radiates out, and therefore, it is seen that the photon loss is very large and the terahertz generation efficiency is low.
Disclosure of Invention
The invention provides a system and a method for generating high-intensity broadband terahertz waves by utilizing a liquid column, which are used for generating the high-intensity broadband terahertz waves.
In order to achieve the above object, the present invention provides a system for generating high-intensity broadband terahertz waves using a liquid column, comprising a laser, a beam splitter, a chopper, a first off-axis parabolic mirror and a liquid column sequentially disposed on an optical path, wherein:
the focal length of the first off-axis parabolic mirror is 1 inch,
the direction of the liquid column is vertically downward,
the laser is used for emitting a horizontal polarized laser beam, the horizontal polarized laser beam is divided into a beam of pumping light and a beam of detection light after passing through the spectroscope, the pumping light is modulated by the chopper and then focused on the liquid column through the first off-axis parabolic reflector, and a terahertz wave radiation source capable of radiating high-intensity broadband terahertz waves is formed at the liquid column.
In one embodiment of the present invention, the laser is a femtosecond laser, and the chopping frequency of the chopper is 100-300 Hz.
In an embodiment of the present invention, the liquid in the liquid column is water, an inorganic solution or an organic solution.
In an embodiment of the present invention, the liquid in the liquid column is a calcium chloride solution or a carbon tetrachloride solution.
In one embodiment of the invention, the liquid column has a diameter of 0.2um.
In an embodiment of the present invention, the liquid column is generated by a liquid column generating device, the liquid column generating device includes a liquid tank, a water pump, a spray head, a first connecting pipe and a second connecting pipe, the first connecting pipe is connected between the liquid tank and the water pump, the second connecting pipe is connected between the water pump and the spray head, the water pump is used for pumping and pressurizing liquid in the liquid tank, the spray head sprays the liquid column, and the liquid in the liquid column flows back to the liquid tank.
In an embodiment of the invention, the water pump is a variable frequency vortex type self-priming electric pump with a rated power of 750w, the first connecting pipe is a latex hose, the second connecting pipe is a combination of a metal connecting pipe and the latex hose, wherein the aperture of the latex hose is 3-10 mm, the aperture of the metal connecting pipe is 5-15 mm, and the spray head is an aluminum alloy spray head with an aperture of 0.1-1 mm.
In an embodiment of the present invention, the system for generating high-intensity broadband terahertz waves using a liquid column further includes a terahertz wave detection system including a second off-axis parabolic mirror, a silicon wafer, a third off-axis parabolic mirror, a ZnTe crystal, a first convex lens, a terahertz wave detector, and a second convex lens, wherein:
the focal length of the second off-axis parabolic mirror and the third off-axis parabolic mirror are each 4 inches,
the second off-axis parabolic reflector converges terahertz waves into a beam of parallel light beams, the parallel light beams are filtered by the silicon wafer and then projected to the third off-axis parabolic reflector to be focused and form a focused light beam, the focused light beam and the detection light beam focused by the second convex lens are focused on ZnTe crystals together and then pass through the first convex lens, and then the intensity is detected by the terahertz wave detector.
In an embodiment of the invention, the terahertz wave detector is a self-balancing photodetector.
In an embodiment of the present invention, the terahertz wave radiation source radiates terahertz waves with different intensities toward each angle in space, and in a direction of 65 ° of radiation angle θ, the intensity of the terahertz wave is maximum, and the radiation angle θ is defined as follows:
the direction of the laser projected to the liquid column by the first off-axis paraboloid is defined as A, the direction from the liquid column to the device for receiving terahertz waves is defined as B, the included angle between A and B is defined as radiation angle theta, the radiation angle theta is defined as minus 180 degrees less than or equal to 180 degrees when A and B are in the same direction, the radiation angle theta is defined as 180 degrees when A and B are in the opposite direction, and the radiation angle theta between the direction from the radiation angle theta of 0 degrees and the direction from the radiation angle theta to the direction from the radiation angle theta of 180 degrees is defined as positive, otherwise, the radiation angle theta is negative.
The invention also provides a method for generating high-intensity broadband terahertz waves by using the liquid column, which is applied to the system, and comprises the following steps of:
s1: the laser emits a horizontally polarized laser beam;
s2: the horizontal polarized laser beam is divided into a pump light beam and a detection light beam after passing through the spectroscope;
s3: the pump light is modulated by the chopper and then focused on the liquid column through the first off-axis parabolic reflector;
s4: and a terahertz wave radiation source is formed at the liquid column and radiates high-intensity broadband terahertz waves.
The system and the method for generating the high-intensity broadband terahertz wave by using the liquid column, which are provided by the invention, are innovative in that the liquid column is used for generating the terahertz wave, the generation efficiency is high, the system is simple in structure, low in construction cost, easy to maintain and high in stability, the blank of the current high-intensity broadband terahertz wave generation technical field is made up, and the system and the method have stronger scientific research and practical application values.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram (top view) of a system for generating high-intensity broadband terahertz waves using a liquid column according to the present invention;
FIG. 2 is a schematic view (side view) showing the composition of the liquid column generating apparatus of the present invention;
fig. 3 is a time domain waveform of a terahertz wave generated in accordance with the present invention;
fig. 4 is a spectrum diagram of a terahertz wave generated in accordance with the present invention;
fig. 5 is a numerical distribution diagram of the radiation angle θ in a plan view.
Reference numerals illustrate: 1-a laser; 2-spectroscope; a 3-chopper; 4-a first off-axis parabolic mirror; 5-a liquid column; 51-a liquid pool; 52-a water pump; 53-spray head; 54-a first connection tube; 55-a second connecting tube; a 6-terahertz wave detection system; 61-a second off-axis parabolic mirror; 62-silicon wafer; 63-a third off-axis parabolic mirror; 64-ZnTe crystal; 65-a first convex lens; 66-terahertz wave detector; 67-second convex lens.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic diagram (top view) of a system for generating high-intensity broadband terahertz waves by using a liquid column according to the present invention, and fig. 2 is a schematic diagram (side view) of a device for generating high-intensity broadband terahertz waves by using a liquid column according to the present invention, as shown in fig. 1 and 2, the system for generating high-intensity broadband terahertz waves by using a liquid column according to the present invention includes a laser 1, a beam splitter 2, a chopper 3, a first off-axis parabolic mirror 4, and a liquid column 5, which are sequentially disposed on an optical path, wherein:
the focal length of the first off-axis parabolic mirror 4 is 1 inch,
the liquid column 5 is directed vertically downwards and should be a continuous, stable, constant flow rate, unchanged in shape.
The laser 1 is used for emitting a horizontal polarized laser beam, the horizontal polarized laser beam is divided into a beam of pumping light and a beam of detection light after passing through the spectroscope 2, the pumping light is modulated by the chopper 3 and then focused on the liquid column 5 through the first off-axis parabolic 4 reflector, and a terahertz wave radiation source capable of radiating high-intensity broadband terahertz waves is formed at the liquid column 5.
The laser 1 in the present invention may be, for example, a femtosecond laser, and the chopping frequency of the chopper 3 may be, for example, 100 to 300Hz.
In the present invention, the liquid in the liquid column 5 may be water, an inorganic solution (e.g., a calcium chloride solution), or an organic solution (e.g., a carbon tetrachloride solution).
In an embodiment of the present invention, the diameter of the liquid column 5 may be, for example, 0.2um, but the present invention is not limited thereto, and the diameter of the liquid column may be adjusted according to practical needs.
As shown in fig. 2, in the present embodiment, the liquid column 5 is produced by a liquid column producing apparatus including a liquid pool 51, a water pump 52, a spray head 53, a first connecting pipe 54 and a second connecting pipe 55, the first connecting pipe 54 is connected between the liquid pool 51 and the water pump 52, the second connecting pipe 55 is connected between the water pump 52 and the spray head 53, the water pump 52 is used for pumping and pressurizing the liquid in the liquid pool 51, and the spray head 53 sprays the liquid column 5, and the liquid in the liquid column 5 flows back to the liquid pool 51.
In fig. 2, the water pump 52 may be, for example, a variable frequency vortex self-priming pump with a rated power of 750w, the first connection pipe 54 may be a latex hose, the second connection pipe 55 may be a combination of a metal connection pipe and a latex hose (wherein the metal connection pipe is close to the water pump, and the latex hose is close to the spray head), the aperture of the latex hose is 3-10 mm, the aperture of the metal connection pipe is 5-15 mm, and the spray head 53 is an aluminum alloy spray head with an aperture of 0.1-1 mm.
In the invention, the terahertz wave radiation source radiates terahertz waves with different intensities towards each angle of space, and the intensity of the terahertz wave is maximum in the direction of a radiation angle theta of 65 degrees, and the radiation angle theta is defined as follows:
the direction of the laser projected to the liquid column by the first off-axis paraboloid is defined as A, the direction from the liquid column to the device for receiving terahertz waves is defined as B, the included angle between A and B is defined as radiation angle theta, the radiation angle theta is defined as minus 180 degrees less than or equal to 180 degrees when A and B are in the same direction, the radiation angle theta is defined as 180 degrees when A and B are in the opposite direction, and the radiation angle theta between the direction from the radiation angle theta of 0 degrees and the direction from the radiation angle theta to the direction from the radiation angle theta of 180 degrees is defined as positive, otherwise, the radiation angle theta is negative. From this definition, the radiation angle θ in fig. 1 is a positive value. Fig. 5 is a graph showing a distribution of values of the radiation angle θ in a plan view, as shown in fig. 5, in the plan view shown in fig. 1, -180 ° < θ+.ltoreq.180°, the intensity of the terahertz wave is maximum when the radiation angle θ is 65 °, and the terahertz wave shown in fig. 3 and 4 corresponds to the radiation angle θ of 65 °.
As shown in fig. 1, the system for generating high-intensity broadband terahertz waves using a liquid column according to the present invention may further include a terahertz wave detection system 6 including a second off-axis parabolic mirror 61, a silicon wafer 62, a third off-axis parabolic mirror 63, a ZnTe crystal 64, a first convex lens 65, a terahertz wave detector 66, and a second convex lens 67, wherein:
the focal length of the second off-axis parabolic mirror 61 and the third off-axis parabolic mirror 63 are each 4 inches,
the second off-axis parabolic mirror 61 converges the terahertz wave into a parallel beam, the parallel beam is filtered by the silicon wafer 62 and then projected to the third off-axis parabolic mirror 63 to be focused and form a focused beam, the focused beam and the probe beam focused by the second convex lens 67 are focused together on the ZnTe crystal 64 and then pass through the first convex lens 65, and then the intensity is detected by the terahertz wave detector 66.
In fig. 2, the terahertz wave detector 66 may be, for example, a self-balancing photodetector.
The invention also provides a method for generating high-intensity broadband terahertz waves by using the liquid column, which is applied to the method in fig. 1 and 2, and comprises the following steps:
s1: the laser 1 emits a horizontally polarized laser beam;
s2: the horizontally polarized laser beam is divided into a pump light beam and a detection light beam after passing through the spectroscope 2;
s3: the pump light is modulated by the chopper 3 and focused on the liquid column 5 through the first off-axis parabolic reflector 4;
s4: a terahertz wave radiation source is formed at the liquid column 5 and radiates high-intensity broadband terahertz waves.
In the present invention, signal light such as 'light beam' propagates in the same horizontal plane, that is, signal light between any two elements in fig. 1 is in the same horizontal plane, and terahertz waves generated are received in the same horizontal plane.
Fig. 3 is a time domain waveform of the terahertz wave generated by the present invention, fig. 4 is a spectrum diagram of the terahertz wave generated by the present invention, the time delay in fig. 3 refers to the time difference between the pump light and the probe light after passing through the beam splitter 2, and as can be seen from fig. 3 and 4, the amplitude of the terahertz wave is more than 10 times stronger than the intensity of the terahertz wave generated by pumping air with the same power; the frequency spectrum width of the terahertz wave can reach 3THz, so that the high-intensity broadband terahertz radiation source can be generated, and the practical application of spectrum measurement and imaging is easy.
The system and the method for generating the high-intensity broadband terahertz wave by using the liquid column, which are provided by the invention, are innovative in that the liquid column is used for generating the terahertz wave, the generation efficiency is high, the system is simple in structure, low in construction cost, easy to maintain and high in stability, the blank of the current high-intensity broadband terahertz wave generation technical field is made up, and the system and the method have stronger scientific research and practical application values.
Those of ordinary skill in the art will appreciate that: the drawing is a schematic diagram of one embodiment and the modules or flows in the drawing are not necessarily required to practice the invention.
Those of ordinary skill in the art will appreciate that: the modules in the apparatus of the embodiments may be distributed in the apparatus of the embodiments according to the description of the embodiments, or may be located in one or more apparatuses different from the present embodiments with corresponding changes. The modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (11)
1. The system for generating the high-intensity broadband terahertz waves by utilizing the liquid column is characterized by comprising a laser, a spectroscope, a chopper, a first off-axis parabolic reflector and a liquid column which are sequentially arranged on an optical path, wherein:
the focal length of the first off-axis parabolic mirror is 1 inch,
the direction of the liquid column is vertically downward,
the laser is used for emitting a horizontal polarized laser beam, the horizontal polarized laser beam is divided into a beam of pumping light and a beam of detection light after passing through the spectroscope, the pumping light is modulated by the chopper and then focused on the liquid column through the first off-axis parabolic reflector, and a terahertz wave radiation source capable of radiating high-intensity broadband terahertz waves is formed at the liquid column.
2. The system for generating high-intensity broadband terahertz waves using a liquid column according to claim 1, wherein the laser is a femtosecond laser and the chopper has a chopping frequency of 100-300 Hz.
3. The system for generating high-intensity broadband terahertz waves using a liquid column according to claim 1, wherein the liquid in the liquid column is water, an inorganic solution, or an organic solution.
4. The system for generating high-intensity broadband terahertz waves using a liquid column according to claim 3, wherein the liquid in the liquid column is a calcium chloride solution or a carbon tetrachloride solution.
5. The system for generating high-intensity broadband terahertz waves using a liquid column according to claim 1, wherein the liquid column has a diameter of 0.2um.
6. The system for generating high-intensity broadband terahertz waves according to claim 1, wherein the liquid column is generated by a liquid column generating device that includes a liquid pool, a water pump, a spray head, a first connection pipe connected between the liquid pool and the water pump, and a second connection pipe connected between the water pump and the spray head, the water pump being for extracting and pressurizing the liquid in the liquid pool, and spraying out the liquid column from the spray head, the liquid in the liquid column flowing back to the liquid pool.
7. The system for generating high-intensity broadband terahertz waves using a liquid column according to claim 6, wherein the water pump is a variable frequency vortex type self-priming electric pump with a rated power of 750w, the first connecting pipe is a latex hose, the second connecting pipe is a combination of a metal connecting pipe and a latex hose, wherein the aperture of the latex hose is 3-10 mm, the aperture of the metal connecting pipe is 5-15 mm, and the spray head is an aluminum alloy spray head with an aperture of between 0.1-1 mm.
8. The system for generating high-intensity broadband terahertz waves using a liquid column according to claim 1, further comprising a terahertz wave detection system including a second off-axis parabolic mirror, a silicon wafer, a third off-axis parabolic mirror, a ZnTe crystal, a first convex lens, a terahertz wave detector, and a second convex lens, wherein:
the focal length of the second off-axis parabolic mirror and the third off-axis parabolic mirror are each 4 inches,
the second off-axis parabolic reflector converges terahertz waves into a beam of parallel light beams, the parallel light beams are filtered by the silicon wafer and then projected to the third off-axis parabolic reflector to be focused and form a focused light beam, the focused light beam and the detection light beam focused by the second convex lens are focused on ZnTe crystals together and then pass through the first convex lens, and then the intensity is detected by the terahertz wave detector.
9. The system for generating high-intensity broadband terahertz waves using a liquid column according to claim 8, wherein the terahertz wave detector is a self-balancing photodetector.
10. The system for generating high-intensity broadband terahertz waves using a liquid column according to claim 1, wherein the terahertz wave radiation source radiates terahertz waves having different intensities toward various angles of space, and the intensity of the terahertz wave is maximum in a direction in which the radiation angle θ is 65 °, and the radiation angle θ is defined as follows:
the direction of the laser projected to the liquid column by the first off-axis paraboloid is defined as A, the direction from the liquid column to the device for receiving terahertz waves is defined as B, the included angle between A and B is defined as radiation angle theta, the radiation angle theta is defined as minus 180 degrees less than or equal to 180 degrees when A and B are in the same direction, the radiation angle theta is defined as 180 degrees when A and B are in the opposite direction, and the radiation angle theta between the direction from the radiation angle theta of 0 degrees and the direction from the radiation angle theta to the direction from the radiation angle theta of 180 degrees is defined as positive, otherwise, the radiation angle theta is negative.
11. A method for generating high-intensity broadband terahertz waves using a liquid column for use in the system of any one of claims 1 to 10, comprising the steps of:
s1: the laser emits a horizontally polarized laser beam;
s2: the horizontal polarized laser beam is divided into a pump light beam and a detection light beam after passing through the spectroscope;
s3: the pump light is modulated by the chopper and then focused on the liquid column through the first off-axis parabolic reflector;
s4: and a terahertz wave radiation source is formed at the liquid column and radiates high-intensity broadband terahertz waves.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109999360A (en) * | 2019-03-01 | 2019-07-12 | 钟海军 | A kind of Terahertz cell physiotherapy equipment |
| CN110048292B (en) * | 2019-05-20 | 2023-11-10 | 首都师范大学 | System and method for generating enhanced terahertz waves by using double-beam pumping liquid |
| CN111431014A (en) * | 2020-03-17 | 2020-07-17 | 昆明理工大学 | Device and method for exciting terahertz waves by focusing laser pulses on micro-droplets |
| CN114136915A (en) * | 2021-11-05 | 2022-03-04 | 清华大学 | System and method for generating broadband terahertz waves with any polarization angle |
| CN114199376B (en) * | 2021-11-23 | 2024-02-06 | 首都师范大学 | System and method for coherently detecting broadband strong terahertz waves by utilizing metal nanoparticle solution |
| CN115173192B (en) * | 2022-06-30 | 2023-06-09 | 首都师范大学 | System and method for representing terahertz wave beam spatial distribution by using liquid column as probe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010117397A (en) * | 2008-11-11 | 2010-05-27 | Aisin Seiki Co Ltd | Device and method for generating terahertz wave |
| CN106546555A (en) * | 2016-10-08 | 2017-03-29 | 首都师范大学 | Air plasma produces the spectrum modulation method and light path system of THz wave |
| CN107611755A (en) * | 2017-10-13 | 2018-01-19 | 首都师范大学 | The system and method that the adjustable double plasma of spacing produces high intensity THz wave |
| CN208489522U (en) * | 2018-06-08 | 2019-02-12 | 首都师范大学 | The system for generating high-intensity broadband THz wave using liquid column |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012238695A (en) * | 2011-05-11 | 2012-12-06 | Canon Inc | Terahertz wave generating device and measurement device having the same |
-
2018
- 2018-06-08 CN CN201810587765.8A patent/CN108683059B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010117397A (en) * | 2008-11-11 | 2010-05-27 | Aisin Seiki Co Ltd | Device and method for generating terahertz wave |
| CN106546555A (en) * | 2016-10-08 | 2017-03-29 | 首都师范大学 | Air plasma produces the spectrum modulation method and light path system of THz wave |
| CN107611755A (en) * | 2017-10-13 | 2018-01-19 | 首都师范大学 | The system and method that the adjustable double plasma of spacing produces high intensity THz wave |
| CN208489522U (en) * | 2018-06-08 | 2019-02-12 | 首都师范大学 | The system for generating high-intensity broadband THz wave using liquid column |
Non-Patent Citations (1)
| Title |
|---|
| "Observation of broadband terahertz wave generation from liquid water";Qi Jin，et al.;《APPLIED PHYSICS LETTERS》;第111卷(第7期);1-5 * |
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| CN108683059A (en) | 2018-10-19 |
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