Generation of tunable terahertz out-of-plane radiation using Josephson vortices in modulated layered superconductors

Article

关键词: CHERENKOV RADIATION;    VORTEX DYNAMICS;    INTRINSIC JUNCTIONS;    PLASMA;    FLUXON;    MOTION;    EMISSION;    LATTICE;    DEVICES;    SYSTEM;   

DOI  :  10.1103/PhysRevB.72.144515

来源: SCIE

【 摘 要 】

We show that a moving Josephson vortex in spatially modulated layered superconductors generates out-of-plane THz radiation. Remarkably, the magnetic and in-plane electric fields radiated are of the same order, which is very unusual for any good-conducting medium. Therefore, the out-of-plane radiation can be emitted to the vacuum without the standard impedance mismatch problem. Thus, the proposed tunable THz emitter for out-of-plane radiation can be more efficient than the standard one which radiates only along the ab-plane.

【 授权许可】

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