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| Presentation | 2024-01-23 14:25 Frequency-modulated terahertz source made of intrinsic Josephson junctions of high-temperature superconductors Nozomi Yagyu, Masahi Miyamoto, Ryota Kobayashi (Kyoto Univ), Manabu Tsujimoto (AIST), Itsuhiro Kakeya (Kyoto Univ)  SCE2023-25 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Terahertz waves are electromagnetic waves in the frequency range between radio waves and light waves, and are expected to be applied to ultrahigh-speed communications. Nowadays, various sources are being studied as a terahertz wave emitter. In this study, we focused on the unique feature of emitter using Intrinsic Josephson Junction of Bi2212 that the radiation frequency is proportional to the bias voltage, and attempted to modulate the frequency of the emitted terahertz wave. As a result, we were successfully observed the frequency spectrum with modulation of a few GHz in different two samples. This result is expected to have various applications not only for ultrahigh-speed communications using terahertz waves, but also as a material for considering the relaxation time of Josephson plasma synchronization and terahertz frequency comb. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Terahertz Wave / Frequency Modulation / Bi2212 / High Temperature Superconductor, / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 123, no. 353, SCE2023-25, pp. 13-18, Jan. 2024. | |
| Paper # | SCE2023-25 | |
| Date of Issue | 2024-01-16 (SCE) | |
| ISSN | Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | SCE2023-25 |
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| Conference Information | |
| Committee | SCE |
| Conference Date | 2024-01-23 - 2024-01-23 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Superconducting Electronics |
| Paper Information | |
| Registration To | SCE |
| Conference Code | 2024-01-SCE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Frequency-modulated terahertz source made of intrinsic Josephson junctions of high-temperature superconductors |
| Sub Title (in English) | |
| Keyword(1) | Terahertz Wave |
| Keyword(2) | Frequency Modulation |
| Keyword(3) | Bi2212 |
| Keyword(4) | High Temperature Superconductor, |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Nozomi Yagyu |
| 1st Author's Affiliation | Kyoto University (Kyoto Univ) |
| 2nd Author's Name | Masahi Miyamoto |
| 2nd Author's Affiliation | Kyoto University (Kyoto Univ) |
| 3rd Author's Name | Ryota Kobayashi |
| 3rd Author's Affiliation | Kyoto University (Kyoto Univ) |
| 4th Author's Name | Manabu Tsujimoto |
| 4th Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) |
| 5th Author's Name | Itsuhiro Kakeya |
| 5th Author's Affiliation | Kyoto University (Kyoto Univ) |
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| Speaker | Author-5 |
| Date Time | 2024-01-23 14:25:00 |
| Presentation Time | 25 minutes |
| Registration for | SCE |
| Paper # | SCE2023-25 |
| Volume (vol) | vol.123 |
| Number (no) | no.353 |
| Page | pp.13-18 |
| #Pages | 6 |
| Date of Issue | 2024-01-16 (SCE) |
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