Theoretical exploration of Josephson Plasma Emission in Intrinsic Josephson Junctions

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In this paper, the authors theoretically predict the best efficient way for electromagnetic wave emission by Josephson plasma excitation in intrinsic Josephson junctions. First, they briefly derive basic equations describing dynamics of phase differences inside junction sites in intrinsic Josephson junctions, and review the nature of Josephson plasma excitation modes based on the equations. Especially, they make an attention to that Josephson plasma modes have much different dispersion relations depending on the propagating directions and their different modes can be recognized as N standing waves propagating along ah-plane in cases of finite stacked systems composed of N junctions. Second, they … continued below

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13 p.

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Tachiki, M. & Machida, M. July 18, 2000.

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In this paper, the authors theoretically predict the best efficient way for electromagnetic wave emission by Josephson plasma excitation in intrinsic Josephson junctions. First, they briefly derive basic equations describing dynamics of phase differences inside junction sites in intrinsic Josephson junctions, and review the nature of Josephson plasma excitation modes based on the equations. Especially, they make an attention to that Josephson plasma modes have much different dispersion relations depending on the propagating directions and their different modes can be recognized as N standing waves propagating along ah-plane in cases of finite stacked systems composed of N junctions. Second, they consider how to excite their modes and point out that excitations of in-phase mode with the highest propagation velocity among their N modes are the most efficient way for electromagnetic wave emissions. Finally, they clarify that in-phase excitations over all junctions are possible by using Josephson vortex flow states. They show simulation results of Josephson vortex flow states resonating with some Josephson plasma modes and predict that superradiance of electromagnetic field may occur in rectangular vortex flow state in which spatiotemporal oscillations of electromagnetic fields are perfectly in-phase.

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13 p.

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INIS; OSTI as DE00759075

Medium: P; Size: 13 pages

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  • SPIE 14th International Symposium on Aerospace/Defense Sensing, Simulation and Controls, Orlando, FL (US), 04/24/2000--04/28/2000

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  • Report No.: ANL/MSD/CP-102357
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 759075
  • Archival Resource Key: ark:/67531/metadc704186

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  • July 18, 2000

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 7, 2017, 1:18 p.m.

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Tachiki, M. & Machida, M. Theoretical exploration of Josephson Plasma Emission in Intrinsic Josephson Junctions, article, July 18, 2000; Illinois. (https://digital.library.unt.edu/ark:/67531/metadc704186/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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