| Presentation | 2001/10/6 High-frequency wideband detectors using high-Tc Josephson junctions J. Chen, H. Horiguchi, H.B. Wang, K. Nakajima, T. Yamashita, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Using high-Tc Josephson junctions made of YBa_2Cu_3O_<7-δ> film deposited across MgO bicrystal boundary, we have studied their responses to the high-frequency electromagnetic radiation at wideband frequencies of 50GHz to 3.1THz and operation temperatures of 70K and 40K. The direct responses from 50GHz to 760GHz at 70K and from 300GHz to 3.1THz at 40K have been observed, indicating that the detectors can be realized to cover about a decade frequency band at one operation temperature and two decades frequency band with combining measurements at two different temperatures using only one junction. Also, it is found experimentally that the highest response frequency and maximum value of the normalized response are both proportional to the I_CR_N product of the junctions. In addition, discussed are the spectral linewidth and the highest responsible frequency, as well as the detection to the signal including several monochromatic irradiations with different frequencies. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | High-Tc Josephson junction / high-frequency electromagnetic radiation / response / detector / spectrum |
| Paper # | SCE2001-25 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 2001/10/6(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Superconductive Electronics (SCE) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | High-frequency wideband detectors using high-Tc Josephson junctions |
| Sub Title (in English) | |
| Keyword(1) | High-Tc Josephson junction |
| Keyword(2) | high-frequency electromagnetic radiation |
| Keyword(3) | response |
| Keyword(4) | detector |
| Keyword(5) | spectrum |
| 1st Author's Name | J. Chen |
| 1st Author's Affiliation | Research Institute of Electrical Communication, Tohoku University:CREST, Japan Science and Technology Corporation() |
| 2nd Author's Name | H. Horiguchi |
| 2nd Author's Affiliation | Research Institute of Electrical Communication, Tohoku University |
| 3rd Author's Name | H.B. Wang |
| 3rd Author's Affiliation | Research Institute of Electrical Communication, Tohoku University:CREST, Japan Science and Technology Corporation |
| 4th Author's Name | K. Nakajima |
| 4th Author's Affiliation | Research Institute of Electrical Communication, Tohoku University:CREST, Japan Science and Technology Corporation |
| 5th Author's Name | T. Yamashita |
| 5th Author's Affiliation | CREST, Japan Science and Technology Corporation:New Industry Creation Hatchery Center, Tohoku University |
| Date | 2001/10/6 |
| Paper # | SCE2001-25 |
| Volume (vol) | vol.101 |
| Number (no) | 348 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |