CN104505458A - Portable continuous adjustable terahertz generator - Google Patents
Portable continuous adjustable terahertz generator Download PDFInfo
- Publication number
- CN104505458A CN104505458A CN201410693828.XA CN201410693828A CN104505458A CN 104505458 A CN104505458 A CN 104505458A CN 201410693828 A CN201410693828 A CN 201410693828A CN 104505458 A CN104505458 A CN 104505458A
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- Prior art keywords
- container
- terahertz
- terahertz generator
- heating resistor
- low
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- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 239000002887 superconductor Substances 0.000 claims description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 241000218202 Coptis Species 0.000 claims description 4
- 235000002991 Coptis groenlandica Nutrition 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910052594 sapphire Inorganic materials 0.000 claims description 3
- 239000010980 sapphire Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- 239000007788 liquid Substances 0.000 description 12
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 239000001307 helium Substances 0.000 description 6
- 229910052734 helium Inorganic materials 0.000 description 6
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical group [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000581364 Clinitrachus argentatus Species 0.000 description 1
- 230000005668 Josephson effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Landscapes
- Superconductor Devices And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a portable continuous adjustable terahertz generator. The portable continuous adjustable terahertz generator comprises a terahertz wave guide, a container, a container cover, a fixation part, a hemisphere lens, a heating resistor, a low-temperature thermometer, a BSCCO high-temperature superconductive terahertz source and an electrode plate. The container cover seals the fixation part in the container; the hemisphere lens is arranged at the center of the fixation part, the center of the back surface of the hemisphere lens is provided with the BSCCO high-temperature superconductive terahertz source, and the heating resistor, the low-temperature thermometer and the electrode plate are adhered to positions, which are close to the hemisphere lens, on the fixation part; four electrodes of the electrode plate, two electrodes of the heating resistor and two electrodes of the low-temperature thermometer are led out via the container through enameled wires; the electrode of the BSCCO high-temperature superconductive terahertz source is connected with the electrode plate; and the depth of the terahertz wave guide inserting into the container is right contacted with the hemisphere face of the hemisphere lens at the center of the fixation part. The portable continuous adjustable terahertz generator is small in size, is simple and practical, and is low in cost and convenient to carry and move; and and the portable continuous adjustable terahertz generator can be driven by use of a battery, the system is simple, the use is convenient, and the temperature reduction speed is fast.
Description
Technical field
The invention belongs to high-temperature superconductor BSCCO Terahertz generator technical field, be specifically related to a kind ofly battery-drivenly directly to be immersed in the portable continuously adjustabe Terahertz generator worked in liquid nitrogen.
Background technology
Terahertz (terahertz is called for short THz usually) ripple, typically refers to the electromagnetic wave of frequency between 0.1THz to 10THz, wherein, and 1THz=1000GHz.THz wave has the features such as photon energy is low, temporal and spatial coherence is high, characteristic frequency spectrum, and therefore it has a wide range of applications in the scientific domain such as astronomy, biology, computer, communication.
According to ac josephson effect, 1
μthe direct voltage of V can produce the vibration of frequency up to 484MHz, the frequency of super stream vibration in knot just can be regulated continuously by the direct voltage changing knot two ends, therefore Josephson junction is a kind of desirable voltage-frequency converter, may be used for manufacturing THz source.Within 2007, the U.S., Turkey cooperate with the researcher of Japan, at high-temperature superconductor Bi
2sr
2caCu
2o
8+ δ(BSCCO) define the Josephson junction battle array of 600 knot series connection of platform-like on through micro fabrication, make tandem junction battle array be in low current bias state, and detected by bolometer the THz signal that extension power reaches several microwatt magnitude.
Through development in recent years, a kind of New Solid THz source of continuous wave tunable has been developed in BSCCO-THz source, has easy-to-use, continuous wave, tunable, monochromaticjty good, power advantages of higher.But as a kind of superconductive device, BSCCO-THz source needs to be operated in pole low temperature environment (being liquid helium region mostly).The shortcomings such as traditional helium flow refrigeration machine not only has system complex, complex operation, the preparatory period is long, portability is poor, and liquid helium is expensive, experimental cost is large, and the noise of mechanical refrigerator greatly simultaneously, not portable, this all creates huge obstruction to the application in BSCCO-THz source.
Summary of the invention
Goal of the invention: for the deficiencies in the prior art, the object of the present invention is to provide a kind of portable continuously adjustabe Terahertz generator, overcome the shortcomings such as BSCCO superconduction THz source system complex on traditional helium flow refrigeration machine and mechanical refrigerator, cost be high, not portable, have economical easy-to-use, the feature such as portable, meets user demand.
Technical scheme: in order to realize foregoing invention object, the technical solution used in the present invention is:
A kind of portable continuously adjustabe Terahertz generator, comprises terahertz waveguide, container, container lid, fixture, packaged lens, heating resistor, low-reading thermometer, BSCCO high-temperature superconductor THz source and battery lead plate; Fixture is encapsulated in container by described container lid; Described packaged lens is located at fixture center, establishes BSCCO high-temperature superconductor THz source in the center at the back side of packaged lens, fixture is close to packaged lens and pastes heating resistor, low-reading thermometer and battery lead plate; Two electrodes of four electrodes of battery lead plate, two electrodes of heating resistor and low-reading thermometer guide to outside by enamelled wire through container; The electrode of described BSCCO high-temperature superconductor THz source is connected with battery lead plate by gold thread; Described terahertz waveguide inserts the degree of depth of container, just touches the hemisphere face of the packaged lens at fixture center.
Described use terahertz waveguide is stainless steel tube.
Described container, container lid, fixture are and use oxygen-free copper to process.
The connected mode of described container and container lid is for being threaded, and wherein, container is internal thread, and container lid is external screw thread.
The diameter of described packaged lens is 6mm, and material is sapphire.
Described heating resistor is Chip-R, and resistance is 1k Ω.
Described battery lead plate, heating resistor are connected with outer testing system with row's pin by enamelled wire with low-reading thermometer
Described Terahertz generator is provided required current offset to BSCCO high-temperature superconductor THz source by row's pin and is measured its both end voltage, also provides operating voltage by arranging pin to heating resistor and low-reading thermometer simultaneously.
Described fixture is provided with for carrying out the thermometer detected in real time to the temperature of Terahertz generator internal tank.
The battery powered device of described portable continuously adjustabe Terahertz generator, comprises the first rheostat, the second rheostat, battery, switch, electric capacity, fixed value resistance, the first terminal, the second terminal; The first described rheostat, the second rheostat, battery, switch, fixed value resistance, the first terminal connect, the second described terminal is in parallel with fixed value resistance, described electric capacity with connect after battery, switch in parallel.
The present invention's portable continuously adjustabe Terahertz generator, the closed container that one can be installed BSCCO superconduction THz source is made into the material that heat conductivility is good, directly be soaked in liquid nitrogen and make its work, and go out with the THz waveguide of waveguide by generation, and change working temperature expansion frequency adjustment bandwidth by heating resistor, can realize battery-operated simultaneously, make whole system economical and practical, small volume and less weight, simple to operate, overcome the shortcoming of traditional helium flow refrigeration machine and mechanical refrigerator, finally build the portable continuously adjustabe Terahertz generator that a set of economy is easy-to-use.
Beneficial effect: portable continuously adjustabe Terahertz generator of the present invention, compact, is simple and easy to use, and cost is low.Just the continuously adjustable THz wave of BSCCO superconduction THz source radiation can be driven with battery.Each association area can be applied to easily.Main advantage has: compact, is convenient for carrying and moves.BSCCO superconduction THz source place container bottoms circular diameter * is high is about 4.0cm*2.3cm, and the wide * of the long * of battery case is high is about 8.3cm*6.0cm*3.7cm; Usable-battery drives, and system is simple, easy to use; Cline frequency in a big way can be realized by regulating bias voltage to regulate, and not need external magnetic field to assist; Compared to liquid helium, liquid nitrogen is cheap, greatly reduces costs; BSCCO superconduction THz source place container is directly immersed in liquid nitrogen, and cooling rate is fast.
Accompanying drawing explanation
Fig. 1 is the structural representation of Terahertz generator;
Fig. 2 is the structural representation of Terahertz generator inside;
Fig. 3 is the structural representation of container;
Fig. 4 is the structural representation of container lid;
Fig. 5 is battery powered device circuit diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, portable continuously adjustabe Terahertz generator, use stainless steel tube as terahertz waveguide 1, oxygen-free copper is used to be processed into container 2, container lid 3 and fixture 4, container 2 and container lid 3 are threaded connection (container 2 is internal thread, and container lid 3 is external screw thread); Terahertz waveguide 1 inserts the degree of depth of container 2, and it should be made just to touch the hemisphere face of the packaged lens 5 at fixture 4 center.Use oxygen-free copper to be because its heat conductivility is better as rapidoprint, be conducive to low temperature and conduct to BSCCO high-temperature superconductor THz source 7 from external container 2 and container lid 3.Install packaged lens 5 on the retainers 4, this packaged lens diameter is about 6mm, and material is sapphire.On the retainers 4, be close to packaged lens 5 and paste heating resistor 6, battery lead plate 8 and low-reading thermometer 9.This heating resistor is Chip-R, and resistance is 1k Ω.This battery lead plate uses PCB copper-clad plate to form as Raw material processing, and operation cutter is delineated into four absolute electrodes.Two electrodes of four electrodes of battery lead plate 8, two electrodes of heating resistor 6 and low-reading thermometer guide to outside with two small through hole that enamelled wire is opened on container 2 respectively, then by through hole good seal.Paste in the center at packaged lens 5 back side by the BSCCO high-temperature superconductor THz source 7 (CN103956637A) of independent research, the structure of BSCCO high-temperature superconductor THz source 7 is concrete as shown in Figure 2, and its electrode is connected with battery lead plate 8 by gold thread.
As long as this Terahertz generator main body is dipped in (waveguide mouth is placed on liquid nitrogen liquid level) in liquid nitrogen when work, the low temperature environment of needs just can be provided.Low temperature environment conducts to BSCCO high-temperature superconductor THz source 7 by container 2, container lid 3, fixture 4 and packaged lens 5, for it provides the temperature of need of work.The electrode of BSCCO high-temperature superconductor THz source 7 is connected with the electrode on battery lead plate 8 by gold thread, and battery lead plate 8, heating resistor 6 and low-reading thermometer 9 are connected with outer testing system with row's pin by enamelled wire again.So can required current offset be provided to BSCCO high-temperature superconductor THz source 7 by row's pin and measure its both end voltage, also provide operating voltage by row's pin to heating resistor 6 simultaneously.In addition, can also introduce on sample side can at the low-reading thermometer 9(of low-temperature working such as platinum thermal resistance thermometer PT1000), the temperature of Terahertz generator internal tank is detected in real time.When battery-operated with employing, only the row's pin corresponding to BSCCO high-temperature superconductor THz source 7 need be connected to by battery-driven bias unit.As shown in Figure 5, the first rheostat 11 realizes voltage trim to battery powered device, and the second rheostat 12 realizes voltage coarse adjustment, and the first terminal 13,14 is connected to the electric current input and output of BSCCO high-temperature superconductor THz source 7, thus changes current offset; Second terminal 21,22 effect reads fixed value resistance magnitude of voltage, divided by obtaining the current value flowing through BSCCO high-temperature superconductor THz source 7 after resistance value; The effect of electric capacity is that protection BSCCO high-temperature superconductor THz source 7 exports the unstable high-voltage pulse impact that may bring from cell voltage.As long as the temperature of control BSCCO high-temperature superconductor THz source 7 work and current offset, just can obtain the continuously adjustable THz wave of frequency; Control the voltage of heating resistor 6, just can change working temperature, expand frequency adjustment bandwidth.
The container that BSCCO superconduction THz source is housed directly is invaded bubble in liquid nitrogen, is reached the object of cooling by the present invention, and light small and exquisite, the good airproof performance of this container, heat conduction good (cooling rate is fast), simultaneously liquid nitrogen relative low price, cost is low.Can realize battery-operated, be that whole system is simplified, processing ease, is easy to carry.With the BSCCO superconduction THz source of independent research for core devices, this source has advantages such as sending out continuous wave, tunable, monochromaticjty is good.
Claims (9)
1. a portable continuously adjustabe Terahertz generator, is characterized in that: comprise terahertz waveguide (1), container (2), container lid (3), fixture (4), packaged lens (5), heating resistor (6), BSCCO high-temperature superconductor THz source (7), battery lead plate (8) and low-reading thermometer (9); Fixture (4) is encapsulated in container (2) by described container lid (3); Described packaged lens (5) is located at fixture (4) center, establish BSCCO high-temperature superconductor THz source (7) in the center at the back side of packaged lens (5), fixture (4) is close to packaged lens (5) and pastes heating resistor (6), battery lead plate (8) and low-reading thermometer (9); Two electrodes of four electrodes of battery lead plate (8), two electrodes of heating resistor (6) and low-reading thermometer guide to outside by enamelled wire through container (2); The electrode of described BSCCO high-temperature superconductor THz source (7) is connected with battery lead plate (8) by gold thread; Described terahertz waveguide (1) inserts the degree of depth of container (2), just touches the hemisphere face of the packaged lens (5) at fixture (4) center.
2. portable continuously adjustabe Terahertz generator according to claim 1, is characterized in that: described use terahertz waveguide (1) is stainless steel tube.
3. portable continuously adjustabe Terahertz generator according to claim 1, is characterized in that: described container (2), container lid (3), fixture (4) are and use oxygen-free copper to process.
4. portable continuously adjustabe Terahertz generator according to claim 1, is characterized in that: the connected mode of described container (2) and container lid (3) is for being threaded, and wherein, container (2) is internal thread, and container lid (3) is external screw thread.
5. portable continuously adjustabe Terahertz generator according to claim 1, is characterized in that: the diameter of described packaged lens (5) is 6mm, and material is sapphire.
6. portable continuously adjustabe Terahertz generator according to claim 1, is characterized in that: described heating resistor (6) is Chip-R, and resistance is 1k Ω.
7. portable continuously adjustabe Terahertz generator according to claim 1, is characterized in that: described battery lead plate (8), heating resistor (6) are connected with outer testing system with row's pin by enamelled wire with low-reading thermometer (9).
8. portable continuously adjustabe Terahertz generator according to claim 7, it is characterized in that: described Terahertz generator is provided required current offset to BSCCO high-temperature superconductor THz source (7) by row's pin and measured its both end voltage, also provide operating voltage by row's pin to heating resistor (6) and low-reading thermometer (9) simultaneously.
9. the battery powered device of portable continuously adjustabe Terahertz generator according to claim 1, is characterized in that: comprise the first rheostat (11), the second rheostat (12), battery, switch, electric capacity, fixed value resistance, the first terminal (13,14), the second terminal (21,22); Described the first rheostat (11), the second rheostat (12), battery, switch, fixed value resistance, the first terminal (13,14) are connected, described the second terminal (21,22) is in parallel with fixed value resistance, described electric capacity with connect after battery, switch in parallel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410693828.XA CN104505458B (en) | 2014-11-27 | 2014-11-27 | A kind of portable continuously adjustabe Terahertz generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410693828.XA CN104505458B (en) | 2014-11-27 | 2014-11-27 | A kind of portable continuously adjustabe Terahertz generator |
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| Publication Number | Publication Date |
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| CN104505458A true CN104505458A (en) | 2015-04-08 |
| CN104505458B CN104505458B (en) | 2017-10-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106689983A (en) * | 2016-12-22 | 2017-05-24 | 白云绮 | Manufacturing device for activating vital water or activating food |
| CN108700719A (en) * | 2016-03-02 | 2018-10-23 | 华为技术有限公司 | Optical mode conversion using transistor outline technology and a kind of globe lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101730961A (en) * | 2007-03-16 | 2010-06-09 | 哈佛大学 | Be used to produce the method and apparatus of terahertz emission |
| US8050531B2 (en) * | 2006-09-27 | 2011-11-01 | Anis Rahman | Dendrimer based terahertz generator |
| CN102929071A (en) * | 2012-11-19 | 2013-02-13 | 山东海富光子科技股份有限公司 | Single-frequency terahertz source generated by using single-frequency laser as nonlinear difference frequency |
| CN103001111A (en) * | 2012-11-28 | 2013-03-27 | 山东海富光子科技股份有限公司 | Terahertz source generated based on nonlinear difference frequency of fiber lasers |
| CN103427015A (en) * | 2013-09-02 | 2013-12-04 | 南京大学 | Portable high-power continuously-adjustable terahertz generator |
| CN103956637A (en) * | 2014-05-14 | 2014-07-30 | 南京大学 | High-frequency BSCCO-THz source |
| CN204289539U (en) * | 2014-11-27 | 2015-04-22 | 南京大学 | A kind of portable continuously adjustabe Terahertz generator |
-
2014
- 2014-11-27 CN CN201410693828.XA patent/CN104505458B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8050531B2 (en) * | 2006-09-27 | 2011-11-01 | Anis Rahman | Dendrimer based terahertz generator |
| CN101730961A (en) * | 2007-03-16 | 2010-06-09 | 哈佛大学 | Be used to produce the method and apparatus of terahertz emission |
| CN102929071A (en) * | 2012-11-19 | 2013-02-13 | 山东海富光子科技股份有限公司 | Single-frequency terahertz source generated by using single-frequency laser as nonlinear difference frequency |
| CN103001111A (en) * | 2012-11-28 | 2013-03-27 | 山东海富光子科技股份有限公司 | Terahertz source generated based on nonlinear difference frequency of fiber lasers |
| CN103427015A (en) * | 2013-09-02 | 2013-12-04 | 南京大学 | Portable high-power continuously-adjustable terahertz generator |
| CN103956637A (en) * | 2014-05-14 | 2014-07-30 | 南京大学 | High-frequency BSCCO-THz source |
| CN204289539U (en) * | 2014-11-27 | 2015-04-22 | 南京大学 | A kind of portable continuously adjustabe Terahertz generator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700719A (en) * | 2016-03-02 | 2018-10-23 | 华为技术有限公司 | Optical mode conversion using transistor outline technology and a kind of globe lens |
| CN106689983A (en) * | 2016-12-22 | 2017-05-24 | 白云绮 | Manufacturing device for activating vital water or activating food |
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| Publication number | Publication date |
|---|---|
| CN104505458B (en) | 2017-10-20 |
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