Emission of continuous coherent terahertz waves with tunable frequency by intrinsic Josephson junctions
Masashi Tachiki, Mikio Iizuka, Kazuo Minami, Syogo Tejima, Hisashi Nakamura
DOI 10.1103/PhysRevB.71.134515 · Physical Review B
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Abstract
We present simulation results based on a model for emission of electromagnetic terahertz waves by high Tc superconductors. High Tc 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.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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