Transmissive Suppressed-Order Diffraction Grating (SODG)
Classical Physics
2019-01-29 v1 Applied Physics
Abstract
We present a novel type of Suppressed-Order Diffraction Grating(SODG). An SODG is a diffraction grating whose diffraction orders have all been suppressed except one that is selected to provide electromagnetic deflection. The proposed SODG is a transmissive grating that exhibits high-efficiency refraction-like deflection for all angles, including large angles that are generally challenging to achieve, while featuring a deeply subwavelength thickness, as required in the microwave regime. We first present the design rationale and guidelines, and next demonstrate such a 10.5 GHz SODG that reaches an efficiency of 90% at 70 degrees.
Cite
@article{arxiv.1901.09695,
title = {Transmissive Suppressed-Order Diffraction Grating (SODG)},
author = {Ashutosh Patri and Guillaume Lavigne and Christophe Caloz},
journal= {arXiv preprint arXiv:1901.09695},
year = {2019}
}