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Title: Rare earth gas laser

A high energy gas laser with light output in the infrared or visible region of the spectrum is described. Laser action is obtained by generating vapors of rare earth halides, particularly neodymium iodide or, to a lesser extent, neodymium bromide, and disposing the rare earth vapor medium in a resonant cavity at elevated temperatures; e.g., approximately 1200/sup 0/ to 1400/sup 0/K. A particularly preferred gaseous medium is one involving a complex of aluminum chloride and neodymium chloride, which exhibits tremendously enhanced vapor pressure compared to the rare earth halides per se, and provides comparable increases in stored energy densities.
Authors:
Publication Date:
OSTI Identifier:
7251445
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; GAS LASERS; DESIGN; HALIDES; INFRARED RADIATION; LASER MATERIALS; RARE EARTH COMPOUNDS; VAPOR PRESSURE; VERY HIGH TEMPERATURE; VISIBLE RADIATION; ELECTROMAGNETIC RADIATION; HALOGEN COMPOUNDS; LASERS; PHYSICAL PROPERTIES; RADIATIONS; THERMODYNAMIC PROPERTIES 420300* -- Engineering-- Lasers-- (-1989)