Infrared thin-film totally reflecting quarter-wave retarders.
Double-layer ThF(4)-ZnS coatings on a prism of KCl, KBr, and KI are optimized to give totally reflecting quarter-wave retarders at a wavelength of 10.6 microm. The influence on the design parameters of the light absorption occurring at high temperatures is described.
Cojocaru
E
E
Julea
T
T
Nichitiu
F
F