Giant asymmetric self-phase modulation in superconductor thin films
Optics
2017-10-25 v1 Superconductivity
Pattern Formation and Solitons
Abstract
Self-phase modulation (SPM) of light pulses is found to occur strongly, at low incident intensities, in the coupling of light with superconductors. We develop a theory from a synthesis of the time-dependent Ginzburg-Landau (TDGL) equation and basic electrodynamics which shows the strongly non-linear phase accumulated in the interaction. Unusually, the SPM of the pulse in this system is found to be highly asymmetric, producing a strongly redshifted spectrum when interacting with a superconducting thin film, and it develops in just a few nanometers of propagation. In this paper we present theoretical results and simulations in the THz regime, for both hyperbolic secant and supergaussian-shaped pulses.
Cite
@article{arxiv.1710.08752,
title = {Giant asymmetric self-phase modulation in superconductor thin films},
author = {Charles Robson and Fabio Biancalana},
journal= {arXiv preprint arXiv:1710.08752},
year = {2017}
}