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Title: Laser action by optically depumping lower states

Abstract

A method and apparatus for obtaining laser action between an upper energy level and a lower energy level of a gaseous medium, which comprises populating the upper energy level to some degree (short of achieving a conventional inverted population) by any suitable pumping means, and thereafter establishing an inverted population by transiently and selectively depumping the lower energy level such as by exposing the medium to an intense source of radiation which selectively causes the transformation of the lower energy level species to some other energy level. Thus, a thermally pumped/optically depumped gas laser system is produced.

Inventors:
 [1]
  1. Pleasanton, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
862747
Patent Number(s):
4004250
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
laser; action; optically; depumping; method; apparatus; obtaining; upper; energy; level; gaseous; medium; comprises; populating; degree; achieving; conventional; inverted; population; suitable; pumping; means; thereafter; establishing; transiently; selectively; exposing; intense; source; radiation; causes; transformation; species; thermally; pumped; depumped; gas; produced; laser action; pumping means; energy level; gaseous medium; gas laser; pumped gas; upper energy; suitable pump; /372/359/

Citation Formats

Krupke, William F. Laser action by optically depumping lower states. United States: N. p., 1977. Web.
Krupke, William F. Laser action by optically depumping lower states. United States.
Krupke, William F. Sat . "Laser action by optically depumping lower states". United States. https://www.osti.gov/servlets/purl/862747.
@article{osti_862747,
title = {Laser action by optically depumping lower states},
author = {Krupke, William F},
abstractNote = {A method and apparatus for obtaining laser action between an upper energy level and a lower energy level of a gaseous medium, which comprises populating the upper energy level to some degree (short of achieving a conventional inverted population) by any suitable pumping means, and thereafter establishing an inverted population by transiently and selectively depumping the lower energy level such as by exposing the medium to an intense source of radiation which selectively causes the transformation of the lower energy level species to some other energy level. Thus, a thermally pumped/optically depumped gas laser system is produced.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1977},
month = {1}
}

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