Microcavity-based Generation of Full Poincar\'{e} Beams with Arbitrary Skyrmion Numbers
Optics
2021-04-28 v1
Abstract
A full Poincar\'e (FP) beam possesses all possible optical spin states in its cross-section, which constitutes an optical analogue of a skyrmion. Until now, FP beams have been exclusively generated using bulk optics. Here, we propose a generation scheme of an FP beam based on an optical microring cavity. We position two different angular gratings along with chiral lines on a microring cavity and generate an FP beam as a superposition of two light beams with controlled spin and orbital angular momenta. We numerically show that FP beams with tailored skyrmion numbers can be generated from this device, opening a route for developing compact light sources with unique optical spin fields.
Keywords
Cite
@article{arxiv.2006.15493,
title = {Microcavity-based Generation of Full Poincar\'{e} Beams with Arbitrary Skyrmion Numbers},
author = {Wenbo Lin and Yasutomo Ota and Yasuhiko Arakawa and Satoshi Iwamoto},
journal= {arXiv preprint arXiv:2006.15493},
year = {2021}
}