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

Abstract

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 design can be more efficient for tunable THz emitters than previous proposals, for radiation only propagating along the ab-plane.

7 pages, 1 figure. Phys. Rev. B (2005), in press

References in corpus (8)

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• Collective Interaction-Driven Ratchet for Transporting Flux Quanta
• The London theory of the crossing-vortex lattice in highly anisotropic layered superconductors
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• Observation of the Transverse Optical Plasmon in SmLa0.8Sr0.2CuO4-d
• Collective Josephson Vortex Dynamics in Long Josephson Junction Stacks
• Partial and macroscopic phase coherences in underdoped Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ thin film
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Cited by in corpus (11)

• Terahertz Josephson plasma waves in layered superconductors: spectrum, generation, nonlinear, and quantum phenomena
• Quantum metamaterials: Electromagnetic waves in a Josephson qubit line
• Phase dynamics of inductively coupled intrinsic Josephson junctions and terahertz electromagnetic radiation
• Alternating dynamic state in intrinsic Josephson-junction stacks self-generated by internal resonance
• Surface Josephson plasma waves in layered superconductors
• Stability of dynamic coherent states in intrinsic Josephson-junction stacks near internal cavity resonance
• Surface Plasma Waves Across the Layers of Intrinsic Josephson Junctions
• Magnetic dipole induced guided vortex motion
• Quantum electrodynamics and photon-assisted tunnelling in long Josephson junctions
• Coherent emission from disordered arrays of driven Josephson vortices
• Terahertz transition radiation of bulk and surface electromagnetic waves by an electron entering a layered superconductor