The most common laser window and mirror materials for use at 10.6 µm will be discussed and compared. Metal mirros have been shown to yield high reflectance and high damage thresholds. Dielectrically coated mirrors yield ultra-high reflectances but lower damage thresholds due to coating defects. The window operational characteristics depend both on the coating and on the window substrate material. The range of available 10.6 μm transmitting substrates will be discussed, their parameters analysed and their operational faults highlighted.
S. K. Sharma,
R. M. Wood,
"Window And Mirror Materials For Use At 10.6 Micron", Proc. SPIE 0369, Max Born Centenary Conf, (16 June 1983); doi: 10.1117/12.934354; https://doi.org/10.1117/12.934354