Self-induced THz-waves transmissivity of waveguides with finite-length layered superconductors

Abstract

We predict and study theoretically a new nonlinear electromagnetic phenomenon in a sample of layered superconductor of finite length placed in a waveguide with ideal walls. Two geometries are considered here: when the superconducting layers are parallel or perpendicular to the waveguide axis. We show that the transmittance of the superconductor slab can vary over a wide range, from nearly zero to one, when changing the amplitude of the incident wave. Thus, one can induce the total transmission or reflection of the incident wave by just changing its amplitude. Moreover, the dependence of the superconductor transmittance on the incident wave amplitude has a hysteretic behavior with jumps. The considered phenomenon of self-induced transparency can be observed even at small amplitudes, if the wave frequency $\omega$ is close to the cutoff frequency for linear Josephson plasma waves.

27 pages, 11 figures, submitted to PRB

References in corpus (5)

• Terahertz Josephson plasma waves in layered superconductors: spectrum, generation, nonlinear, and quantum phenomena
• Phase dynamics of inductively coupled intrinsic Josephson junctions and terahertz electromagnetic radiation
• Layered superconductors as negative-refractive-index metamaterials
• Surface waves versus negative refractive index in layered superconductors
• Self-induced tunable transparency in layered superconductors

Cited by in corpus (2)

• Superposition principle for nonlinear Josephson plasma waves in layered superconductors
• Nonlinear focusing of Terahertz laser beam using layered superconductor