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Title: Laser action by optically depumping lower states

Abstract

A method and apparatus are described for obtaining laser action between an upper energy level and a lower energy level of a gaseous medium. The upper energy level is populated to some degree (short of achieving a conventional inverted population) by any suitable pumping means, and an inverted population is established by transiently and selectively depumping the lower energy level. The depumping may be done 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:
Issue Date:
OSTI Identifier:
7251444
Assignee:
Energy Research and Development Administration
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; GAS LASERS; DESIGN; CARBON DIOXIDE LASERS; ENERGY LEVELS; HEAT SOURCES; POPULATION INVERSION; PUMPING; RADIATION SOURCES; LASERS; 420300* - Engineering- Lasers- (-1989)

Citation Formats

Krupke, W F. Laser action by optically depumping lower states. United States: N. p., 1975. Web.
Krupke, W F. Laser action by optically depumping lower states. United States.
Krupke, W F. Wed . "Laser action by optically depumping lower states". United States.
@article{osti_7251444,
title = {Laser action by optically depumping lower states},
author = {Krupke, W F},
abstractNote = {A method and apparatus are described for obtaining laser action between an upper energy level and a lower energy level of a gaseous medium. The upper energy level is populated to some degree (short of achieving a conventional inverted population) by any suitable pumping means, and an inverted population is established by transiently and selectively depumping the lower energy level. The depumping may be done 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 = {1975},
month = {11}
}