Optical Third-Harmonic Generation in Graphene
Abstract
We report strong third-harmonic generation (THG) in monolayer graphene grown by chemical vapor deposition (CVD) and transferred to an amorphous silica (glass) substrate; the photon energy is in three-photon resonance with the exciton-shifted van Hove singularity at the M-point of graphene. Our polarization- and azimuthal-rotation-dependent measurements confirm the expected symmetry properties for this nonlinear process. Since the third-harmonic signal exceeds that of bulk glass by more than two orders of magnitude, the signal contrast permits background-free scanning of graphene and provides insight into the structural properties of graphene.
Cite
@article{arxiv.1301.1697,
title = {Optical Third-Harmonic Generation in Graphene},
author = {Sung-Young Hong and Jerry I. Dadap and Nicholas Petrone and Po-Chun Yeh and James Hone and Richard M. Osgood},
journal= {arXiv preprint arXiv:1301.1697},
year = {2013}
}
Comments
This paper has been withdrawn by the authors. 20 pages, 5 figures; Posting has been removed due to editorial request