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| Presentation | 2009-07-21 13:25 Numerical investigation of electromagnetic radiation from current-biased intrinsic Josephson junctions Takashi Tachiki, Takashi Uchida (NDA)  SCE2009-10 Link to ES Tech. Rep. Archives: SCE2009-10 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In order to investigate Terahertz radiation from Bi-2212 intrinsic Josephson Junctions under a bias current flow, we have performed a numerical simulation of radiation properties of junction stacks with two different sizes; a number of junctions and junction length. For the three-junction stack with its length of $0.026\lambda_c$, $\lambda_c$ being the c-axis magnetic penetration depth, distinct voltage jumps indicating in-phase and out-of-phase cavity resonance of the Josephson plasma occurred in the return curve of an I-V characteristic, and a radiation power of emitting waves reached the maximum in a bias region corresponding to the in-phase resonance. Moreover, the emitting waves generated by the in-phase resonance exhibited monochromatic spectra, compared with those generated by the out-of-phase resonance. On the other hand, for the 50-junction stack with $0.321\lambda_c$, the radiation power was significantly enhanced by the in-phase resonance, while the increase in power suppressed in bias regions corresponding to the out-of-phase resonances with the low plasma-velocity modes. The maximum power was approximately 150 higher than that of the three-junction stack. These facts are useful for designing a Terahertz oscillator using the intrinsic Josephson junctions. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Bi-2212 / Intrinsic Josephson Junction / sine-Gordon equation / Terahertz wave / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 141, SCE2009-10, pp. 7-12, July 2009. | |
| Paper # | SCE2009-10 | |
| Date of Issue | 2009-07-14 (SCE) | |
| ISSN | Print edition: ISSN 0913-5685 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 | SCE2009-10 Link to ES Tech. Rep. Archives: SCE2009-10 |
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| Conference Information | |
| Committee | SCE |
| Conference Date | 2009-07-21 - 2009-07-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Junctions and materials, etc. |
| Paper Information | |
| Registration To | SCE |
| Conference Code | 2009-07-SCE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Numerical investigation of electromagnetic radiation from current-biased intrinsic Josephson junctions |
| Sub Title (in English) | |
| Keyword(1) | Bi-2212 |
| Keyword(2) | Intrinsic Josephson Junction |
| Keyword(3) | sine-Gordon equation |
| Keyword(4) | Terahertz wave |
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| 1st Author's Name | Takashi Tachiki |
| 1st Author's Affiliation | National Defense Academy (NDA) |
| 2nd Author's Name | Takashi Uchida |
| 2nd Author's Affiliation | National Defense Academy (NDA) |
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| Speaker | Author-1 |
| Date Time | 2009-07-21 13:25:00 |
| Presentation Time | 25 minutes |
| Registration for | SCE |
| Paper # | SCE2009-10 |
| Volume (vol) | vol.109 |
| Number (no) | no.141 |
| Page | pp.7-12 |
| #Pages | 6 |
| Date of Issue | 2009-07-14 (SCE) |
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