Optische Vorrichtung mit Gitterstruktur

摘要

Substrate-supported optical device structures such as, e.g. quantum-well infrared detectors/detector arrays are provided with a grating for optical coupling. A binary, reflection grating is designed so that nh is approximately equal to lambda /4 where n is the refractive index of the grating, h is the thickness of the grating, and lambda is a wavelength of interest.