Coherent control of light interaction with graphene

Rao, S. M., Heitz, J. J. F., Roger, T., Westerberg, N. and Faccio, D. (2014) Coherent control of light interaction with graphene. Optics Letters, 39(18), pp. 5345-5347. (doi:10.1364/OL.39.005345) (PMID:26466267)

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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.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Westerberg, Niclas and Faccio, Professor Daniele
Authors: Rao, S. M., Heitz, J. J. F., Roger, T., Westerberg, N., and Faccio, D.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Optics Letters
Publisher:Optical Society of America
ISSN:0146-9592
ISSN (Online):1539-4794

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