Year: 2006
Type: article
Abstract: A chirality-based approach to making a one-way waveguide that can be used as an optical isolator or a polarizer is described. The waveguide is rectangular, and chirality is introduced by making slanted rectangular grooves on the waveguide walls. Chirality of the waveguide manifests as a strong circular dichroism and is responsible for transmitting one circular polarization of light and reflecting the other. Optical isolation of the propagating circular polarization is accomplished when the chiral waveguide is placed in front of a nonchiral optical device. Even the crudest implementations of chirality are shown to exhibit significant circular dichroism.
Source: Applied Physics Letters
DOI: 10.1063/1.2355466
Author: Gennady Shvets
Institution: The University of Texas at Austin
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1971375360