Accession Number : ADD015879

Title :   An Ultraviolet Faraday Rotator Glass.

Descriptive Note : Patent Application, Filed 29 Apr 93,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Dexter, James L ; Cooper, David G ; Blackburn, Douglas H

Report Date : 29 Apr 1993

Pagination or Media Count : 26

Abstract : A Faraday rotator glass composition based on a fluoride glass, phosphate glass, fluorophosphate glass or a mixture there of is dope with a lanthanide in concentration sufficient to provide a Verdet constant above at least 2870 deg/Tesla-meter (1 MIN/CM-Oe) x (1.667 x 10 (exp 4) = 1 deg/Tesla-meter and optical transmission above at least 50 percent in a 25mm thick polished glass sample at least at one wavelength in the 200 to 400 nm wavelength region. The faraday rotator glass also includes monovolent non-lanthanide cations such as Na, Li, K or mixtures there of in a concentration sufficient to provide a Verdet constant above at least 2870 deg/Telsa-meter and optical transmission above at least 50 percent in a 25mm thick polished glass sample at least at one wave-length in the 200 to 400 nm wave-length region

Descriptors :   *PATENT APPLICATIONS, *GLASS, *ULTRAVIOLET EQUIPMENT, *FLUORIDES, *PHOSPHATES, FARADAY EFFECT, ROTATION, COMPOSITION(PROPERTY), DOPING, OPTICAL PROPERTIES, CATIONS, SODIUM, POTASSIUM, LITHIUM, SURFACES, RARE EARTH ELEMENTS

Subject Categories : Optics
      Ceramics, Refractories and Glass
      Inorganic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE