Enhanced third harmonic generation from the epsilon-near-zero modes of ultrathin films
Optics
2015-04-14 v1 Mesoscale and Nanoscale Physics
Abstract
We experimentally demonstrate efficient third harmonic generation from an indium tin oxide (ITO) nanofilm (lambda/42 thick) on a glass substrate for a pump wavelength of 1.4 um. A conversion efficiency of 3.3x10^-6 is achieved by exploiting the field enhancement properties of the epsilon-near-zero (ENZ) mode with an enhancement factor of 200. This nanoscale frequency conversion method is applicable to other plasmonic materials and reststrahlen materials in proximity of the longitudinal optical phonon frequencies.
Keywords
Cite
@article{arxiv.1502.04142,
title = {Enhanced third harmonic generation from the epsilon-near-zero modes of ultrathin films},
author = {Ting S. Luk and Domenico de Ceglia and Sheng Liu and Gordon A. Keeler and Rohit P. Prasankumar and Maria A. Vincenti and Michael Scalora and Michael B. Sinclair and Salvatore Campione},
journal= {arXiv preprint arXiv:1502.04142},
year = {2015}
}
Comments
13 pages, 5 figures