Coherent control of light interaction with graphene
Optics
2015-06-22 v2
Abstract
We report the experimental observation of all-optical modulation of light in a graphene film. The graphene film is scanned across a standing wave formed by two counter-propagating laser beams in a Sagnac interferometer. Through a coherent absorption process the on-axis transmission is modulated with close to 80% efficiency. Furthermore we observe modulation of the scattered energy by mapping the off-axis scattered optical signal: scattering is minimized at a node of the standing wave pattern and maximized at an antinode. The results highlight the possibility to switch and modulate any given optical interaction with deeply sub-wavelength films.
Cite
@article{arxiv.1406.6217,
title = {Coherent control of light interaction with graphene},
author = {Shraddha M. Rao and Julius J. F. Heitz and Thomas Roger and Niclas Westerberg and Daniele Faccio},
journal= {arXiv preprint arXiv:1406.6217},
year = {2015}
}
Comments
4 pages, 4 figures