Portable high-power continuously-adjustable terahertz generator
A terahertz and high-power technology, applied in the field of portable high-power continuously adjustable terahertz generators, can solve the problems of complex systems, high costs, and unsuitable applications, and achieve the effects of small size, low cost, and low cost
Active Publication Date: 2013-12-04
NANJING UNIV
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Problems solved by technology
[0005] Purpose of the invention: In view of the deficiencies in the prior art, the purpose of the present invention is to provide a portable high-power continuously adjustable terahertz generator, which overcomes the complexity, high cost and unsuitable BSCCO superconducting terahertz source system on the traditional helium flow refrigerator. Application and other shortcomings, making it economical, practical and convenient
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[0018] The present invention will be further described below in conjunction with specific drawings.
[0019] Such as figure 1 , figure 2 , image 3 As shown, the portable high-power continuously adjustable terahertz generator is composed of a cooperating refrigeration device 8 and a terahertz generator 9; the refrigeration device 8 is a helium-free refrigerator, preferably a Stirling refrigerator. The terahertz generating end 9 includes a mounting part 1, a fixing part 2 and a supporting part 3 arranged in the housing; the mounting part 1 is an L-shaped plate, and the vertical plate of the L-shaped plate is connected with the cold head 6 of the Stirling refrigerator. Set the fixing part 2 on the horizontal plate of the L-shaped plate; set the supporting part 3 on the fixing part 2; The electrodes of the terahertz source 7 and the BSCCO high-temperature superconducting terahertz source 7 are connected to the electrode plate 4, and the electrode plate 4 is connected to the s...
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The invention discloses a portable high-power continuously-adjustable terahertz generator which is composed of a refrigeration device and a terahertz generating end, wherein the refrigeration device and the terahertz generating end are used in cooperation. The terahertz generating end comprises a mounting piece, a fixing piece and a supporting piece which are all arranged in a shell, the mounting piece is an L-shaped plate, the vertical plate of the L-shaped plate is connected with the refrigeration device, the fixing piece is arranged on the horizontal plate of the L-shaped plate, the supporting piece is arranged on the fixing piece and provided with a plate electrode and a semi-spherical lens, a BSCCO high-temperature superconductive terahertz source is arranged at the center of the semi-spherical lens, and the electrode of the BSCCO high-temperature superconductive terahertz source is connected with the plate electrode. The refrigeration device is a non-helium refrigerator, the refrigeration end of the non-helium refrigerator is connected with the vertical plate of the L-shaped plate, and sealing pin headers on an outer shell of the non-helium refrigerator is connected with the plate electrode through varnished wires. The generator is small in size and driven by electricity, liquid helium is not consumed, cost is low, and using is convenient; bias voltages are adjusted to achieve large-range continuous frequency adjustment without assist of external magnetic fields, and good practicability is achieved.
Description
technical field [0001] The invention relates to the technical field of terahertz generators, in particular to a portable high-power continuously adjustable terahertz generator. Background technique [0002] Terahertz (usually abbreviated as THz) waves usually refer to electromagnetic waves with a frequency between 100GHz and 30THz, where 1THz=1012GHz. Because terahertz waves have the characteristics of low photon energy, high space-time coherence, and characteristic spectrum, they have broad application prospects in scientific fields such as astronomy, biology, computer, and communication. [0003] According to the AC Josephson effect, a DC voltage of 1 μV can generate oscillations with a frequency up to 484MHz, and the frequency of supercurrent oscillations in the junction can be continuously adjusted by changing the DC voltage across the junction, so the superconducting Josephson junction is an ideal voltage- Frequency converters can be used to create terahertz sources. ...
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IPC IPC(8): H01L39/22
Inventor 王华兵安德越周宪靖许伟伟吴培亨
Owner NANJING UNIV