High reflectivity grating waveguide coatings for 1064nm
General Relativity and Quantum Cosmology
2010-01-05 v1
Abstract
We propose thin single-layer grating waveguide structures to be used as high-reflectivity, but low thermal noise, alternative to conventional coatings for gravitational wave detector test mass mirrors. Grating waveguide (GWG) coatings can show a reflectivity of up to 100% with an overall thickness of less than a wavelength. We theoretically investigate GWG coatings for 1064nm based on tantala (Ta2O5) on a Silica substrate focussing on broad spectral response and low thickness.
Keywords
Cite
@article{arxiv.gr-qc/0608006,
title = {High reflectivity grating waveguide coatings for 1064nm},
author = {A. Bunkowski and O. Burmeister and D. Friedrich and K. Danzmann and R. Schnabel},
journal= {arXiv preprint arXiv:gr-qc/0608006},
year = {2010}
}