Nonlinear optical response of a local surface plasmon coupled to a 2D material
Abstract
We present a theoretical study of the optical response of a nonlinear oscillator formed by coupling a metal nanoparticle local surface plasmon resonance to excitonic degrees of freedom in a monolayer transition-metal dichalcogenide. We show that the combined system should exhibit strong anharmonicity in its low-lying states, predicting for example a seven order-of-magnitude increase in nonlinearity relative to a silicon photonic crystal cavity. Then, we demonstrate that such system exhibits strong quantum features such as antibunching and non-Gaussianity. Arrays of such nanoscale nonlinear oscillators could be used to realize novel optical metamaterials; alternatively, an individual nanoparticle-monolayer construct could be coupled to an optical resonator to mediate efficient input-output coupling to propagating fields.
Keywords
Cite
@article{arxiv.1902.06943,
title = {Nonlinear optical response of a local surface plasmon coupled to a 2D material},
author = {Daniel B. S. Soh and Ryotatsu Yanagimoto and Eric Chatterjee and Hideo Mabuchi},
journal= {arXiv preprint arXiv:1902.06943},
year = {2019}
}