Paper Abstract and Keywords |
Presentation |
2017-01-19 14:00
Study of Mid-infrared Superconducting Hot Electron Bolometer Mixers Akira Kawakami (NICT), Hisashi Shimakage (Ibaraki Univ.), Junsei Horikawa (Fukui Col.), Masaharu Hyodo (Kanazawa Univ.), Shingo Saito, Syukichi Tanaka, Yoshinori Uzawa (NICT) SCE2016-44 Link to ES Tech. Rep. Archives: SCE2016-44 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In order to improve the response performance of mid-infrared detectors, we designed and fabricated a superconducting hot electron bolometer mixer (HEBM) with a mid-infrared twin slot antenna. The design frequency was 61.3 THz, and the HEBs were formed as a superconducting strip with Au antennas and electrodes. Here, the superconductivity of the Nb/NbN layer under the Au electrodes was suppressed by a Ni (1.8 nm) thin film. For evaluating the mid-infrared HEBM properties, measurement setup without beam splitter was constructed. In this setup, local oscillator power was applied directly to the HEBM, and we confirmed that the critical current of the HEB can be reduced to be almost zero by the LO irradiation. The HEBM responses with clear polarization dependencies were also observed. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
HEBM / Infrared / NbN / antenna / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 116, no. 410, SCE2016-44, pp. 31-36, Jan. 2017. |
Paper # |
SCE2016-44 |
Date of Issue |
2017-01-12 (SCE) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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SCE2016-44 Link to ES Tech. Rep. Archives: SCE2016-44 |
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