Emission of continuous coherent terahertz waves with tunable frequency by intrinsic Josephson junctions

被引：131
|
作者：
Tachiki, M
Iizuka, M
Minami, K
Tejima, S
Nakamura, H
机构：
[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
[2] Res Org Informat Sci & Technol, Meguro Ku, Tokyo 1530061, Japan
来源：
PHYSICAL REVIEW B | 2005年 / 71卷 / 13期
关键词：
D O I：
10.1103/PhysRevB.71.134515
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present simulation results based on a model for emission of electromagnetic terahertz waves by high T-c superconductors. High T-c superconductors form naturally stacked Josephson junctions. When an external current and a magnetic field are applied to the sample, fluxon flow induces voltage. The voltage creates oscillating current through the Josephson effect and the current excites the Josephson plasma with terahertz frequency. The sample itself works as a cavity, and the input energy is stored in a form of standing wave of the Josephson plasma. A part of the energy is emitted as terahertz waves.
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页数：5
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