Wave Deflection and Shifted Refocusing in a Medium Modulated by a Superluminal Rectangular Pulse
Classical Physics
2018-03-21 v5 Optics
Abstract
We explore the problem of scattering in a medium modulated by a superluminal rectangular pulse, with the pulse modulation realized through transverse excitations. We solve this problem in the moving frame where the modulation appears purely temporal, since the solution to a purely temporal modulation is known. Upon this basis, we use a graphical approach to find the angle and frequency of the wave scattered by the modulation under oblique incidence. This study reveals that superluminal modulations deflect plane waves retro-directively, and refocus cylindrical waves to a shifted point of space with respect to the original source.
Cite
@article{arxiv.1611.01366,
title = {Wave Deflection and Shifted Refocusing in a Medium Modulated by a Superluminal Rectangular Pulse},
author = {Zoé-Lise Deck-Léger and Alireza Akbarzadeh and Christophe Caloz},
journal= {arXiv preprint arXiv:1611.01366},
year = {2018}
}
Comments
5 pages, 5 figures.; Text modified, Title and abstract modified