Fano-control of down-conversion in a nonlinear crystal embedded with plasmonic-quantum emitter hybrid structures
Abstract
Control of nonlinear response of nanostructures via path interference effects, i.e., Fano resonances, has been studied extensively. In such studies, a frequency conversion process takes place near a hot spot. Here, we study the case where the frequency conversion process takes place \textit{along the body of a nonlinear crystal}. Metal nanoparticle-quantum emitter dimers control the down-conversion process, taking place throughout the crystal body, via introducing interfering conversion paths. Dimers behave as interaction centers. We show that a 2 orders of magnitude enhancement is possible, on top of the enhancement due to localization effects. That is, this factor multiplies the enhancement taking place due to the field localization.
Cite
@article{arxiv.2008.07095,
title = {Fano-control of down-conversion in a nonlinear crystal embedded with plasmonic-quantum emitter hybrid structures},
author = {Zafer Artvin and Mehmet Günay and Alpan Bek and Mehmet Emre Taşgın},
journal= {arXiv preprint arXiv:2008.07095},
year = {2020}
}
Comments
11 pages, 6 figures