Accession Number : ADD000472

Title :   Blue-Green Laser.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Jensen,H P

Report Date : 09 May 1974

Pagination or Media Count : 7

Abstract : The patent application concerns a blue-green solid state laser which operates at room temperature and uses as its active medium an LiYf4 crystal as the host material for the trivalent rare earth ion Tb(3+). High Tb concentrations, 20% or more, are employed for the purpose of increasing the absorption co-efficient and for obtaining an efficient transfer process. At the lower end of this scale, Gd may be included to further increase the pumping efficiency by the energy transfer from Gd to Tb. Blue-green lasers have potential application to underwater communications and viewing systems.

Descriptors :   *Lasers, *Optical pumping, Patents, Yttrium compounds, Lithium compounds, Fluorides, Terbium, Gadolinium, Energy gap, Underwater light

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE