High dispersive and monolithic 100% efficiency grisms
Optics
2012-11-26 v1
Abstract
We present a type of grism, a series combination of transmission grating and prism, in which we reduce the number of diffraction orders and achieve a configuration with very high angular dispersion. The grism can be fabricated from a single dielectric material and requires no metallic or dielectric film layers for high transmission diffraction efficiency. One can reach 100% in the -1st transmission diffraction order and the equal damage threshold as the dielectric bulk material. We realized such an element in fused silica with an efficiency of more then 99%. The bevel backside reflection is reduced by a statistical antireflective structure, so we measured an efficiency of the entire grism of 95% at a single wavelength.
Keywords
Cite
@article{arxiv.1211.5260,
title = {High dispersive and monolithic 100% efficiency grisms},
author = {J. Reinhold and M. Schulze and E. -B. Kley and A. Tünnermann},
journal= {arXiv preprint arXiv:1211.5260},
year = {2012}
}