Dispersion of the Third-Order Nonlinear Optical Susceptibility in C_{60} Calculated with a Tight-Binding Model
Condensed Matter
2007-05-23 v1
Abstract
The frequency dependence of third harmonic generation (THG) in C_{60} is calculated, making use of a tight-binding model for pi-electrons. The magnitudes of the THG, about 10^{-12} esu, near zero frequency, agree with those in experiments for the low-energy region. We can also explain the order of the magnitude, 10^{-11} esu, around the three-photon resonance peak due to the lowest allowed excitation, recently measured by Meth et al. At higher energies, we predict a large enhancement of the THG at 3 omega \sim 6eV as a result of double resonance enhancement.
Keywords
Cite
@article{arxiv.cond-mat/9205012,
title = {Dispersion of the Third-Order Nonlinear Optical Susceptibility in C_{60} Calculated with a Tight-Binding Model},
author = {Kikuo Harigaya and Shuji Abe},
journal= {arXiv preprint arXiv:cond-mat/9205012},
year = {2007}
}
Comments
7 pages, to be published in Jpn. J. Applied Phys. as a Letter