Open AccessHighly asymmetric near infrared light transmission in an all-dielectric grating-on-mirror photonic structure
Author(s) -
Łukasz Zinkiewicz,
Jakub Haberko,
Piotr Wasylczyk
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.004206
Subject(s) - optics , grating , polarization (electrochemistry) , wavelength , materials science , dielectric , photonics , infrared , stack (abstract data type) , transmission (telecommunications) , ray , photonic crystal , optoelectronics , physics , telecommunications , chemistry , computer science , programming language
We demonstrate a photonic structure, composed of a dielectric quarter-wavelength stack topped with a transmission phase grating, designed to exhibit a significant asymmetry in the near infrared light transmission for waves propagating in opposite directions. The asymmetry, defined as the difference between the intensity transmission coefficients, reaches 0.72 ± 0.06 for a single wavelength and exceeds 0.2 over a spectral range spanning from 700 to 850 nm for one incident polarization and 750-800 nm for both polarizations. The experimental results are consistent with the numerical model of light propagation in the structure.