Liquid helium-free high-Tc superconducting terahertz emission system and its applications

We constructed a compact THz emission-detection system based upon the emitters developed by us from the intrinsic Josephson junctions in single crystals of high-Tc superconducting Bi2Sr2CaCu2O8+δ cooled by a Stirling cryocooler and detected with a Schottky barrier diode detector operated at room tem...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 2020-10, Vol.59 (10)
Main Authors: Saiwai, Yoshihiko, Kashiwagi, Takanari, Nakade, Kurama, Tsujimoto, Manabu, Minami, Hidetoshi, Klemm, Richard A., Kadowaki, Kazuo
Format: Article
Language:English
Subjects:
Computed tomography
Crystals
Diode detectors
Emission
Emitters
high-temperature superconductors
intrinsic Josephson junctions
Josephson junctions
Liquid helium
Room temperature
Schottky diodes
Single crystals
Superconducting devices
Superconductivity
Terahertz frequencies
terahertz waves
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Summary:We constructed a compact THz emission-detection system based upon the emitters developed by us from the intrinsic Josephson junctions in single crystals of high-Tc superconducting Bi2Sr2CaCu2O8+δ cooled by a Stirling cryocooler and detected with a Schottky barrier diode detector operated at room temperature. The output from the THz emitter operated by the Stirling cooler is applied to a three-dimensional (3D) THz computer tomography imaging. This compact emission-detection system may be regarded as a prototype of commercial THz wave systems based upon high-Tc superconducting devices, and allows us to make an easy to use compact 3D THz imaging system providing for the next stage of THz applications.
ISSN:0021-4922
1347-4065
DOI:10.35848/1347-4065/abb8f1