| http://www.w3.org/ns/prov#value | - In an argon gas laser having a desired emission wavelength of 0.488 ??m and a discharge tube provided with a Brewster window adjacent at least one of its two opposite ends through which laser radiation is emitted, an improved frequency selective layer system comprising:a plurality of successive layers on said Brewster window, said plurality of layers including only two layer types and including al
|
