Theory of extreme optical concentration in all-dielectric waveguides
Optics
2019-10-01 v1
Abstract
We introduce transversely structured all-dielectric waveguides which exploit the vectorial nature of light to achieve extreme sub-wavelength confinement in high index dielectrics, enabling characteristic mode dimensions below /1,000 without metals or plasmonics. We also derive the metric of optical concentration and show its convenient usage in characterizing enhanced linear and non-linear interactions at the nanoscale. This work expands the toolbox of nanophotonics and opens the door to new types of ultra-efficient and record performing linear and nonlinear devices with broad applications spanning classical and quantum optics.
Keywords
Cite
@article{arxiv.1909.12878,
title = {Theory of extreme optical concentration in all-dielectric waveguides},
author = {Nazmus Sakib and Judson D. Ryckman},
journal= {arXiv preprint arXiv:1909.12878},
year = {2019}
}