Probing of valley polarization in graphene via optical second-harmonic generation
Mesoscale and Nanoscale Physics
2015-06-22 v1 Materials Science
Abstract
Valley polarization in graphene breaks inversion symmetry and therefore leads to second-harmonic generation. We present a complete theory of this effect within a single-particle approximation. It is shown that this may be a sensitive tool to measure the valley polarization created, e.g., by polarized light and, thus, can be used for a development of ultrafast valleytronics in graphene.
Keywords
Cite
@article{arxiv.1407.6808,
title = {Probing of valley polarization in graphene via optical second-harmonic generation},
author = {T. O. Wehling and A. Huber and A. I. Lichtenstein and M. I. Katsnelson},
journal= {arXiv preprint arXiv:1407.6808},
year = {2015}
}
Comments
5 pages, 3 figures