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Title: Device and method for noresonantly Raman shifting ultraviolet radiation

Abstract

A device and method for nonresonantly Raman shifting broad band uv excimer laser radiation, which enhances preselected Stokes signals by varying the pressure of the Raman scattering medium, the focal interaction length of the incident radiation within the Raman scattering medium and its power density level. Gaseous molecular H.sub.2, D.sub.2, CH.sub.4 (methane), HD and mixes thereof, and liquid N.sub.2 are used as the Raman scattering medium to frequency shift the outputs of high power KrF and ArF lasers. A cable fed discharge with an unstable resonant cavity configuration is utilized to produce the output laser power levels required for operation.

Inventors:
 [1];  [1]
  1. (Los Alamos, NM)
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
863309
Patent Number(s):
4144464
Assignee:
United States of America as represented by United States (Washington, DC) LANL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
device; method; noresonantly; raman; shifting; ultraviolet; radiation; nonresonantly; broad; band; excimer; laser; enhances; preselected; stokes; signals; varying; pressure; scattering; medium; focal; interaction; length; incident; power; density; level; gaseous; molecular; methane; hd; mixes; liquid; frequency; shift; outputs; krf; arf; lasers; cable; fed; discharge; unstable; resonant; cavity; configuration; utilized; produce; output; levels; required; operation; cavity configuration; frequency shift; stokes signal; incident radiation; power levels; output laser; ultraviolet radiation; power level; raman scattering; laser radiation; resonant cavity; power density; scattering medium; broad band; laser power; excimer laser; arf laser; raman shifting; density level; interaction length; /359/372/

Citation Formats

Loree, Thomas R., and Barker, Dean L. Device and method for noresonantly Raman shifting ultraviolet radiation. United States: N. p., 1979. Web.
Loree, Thomas R., & Barker, Dean L. Device and method for noresonantly Raman shifting ultraviolet radiation. United States.
Loree, Thomas R., and Barker, Dean L. Mon . "Device and method for noresonantly Raman shifting ultraviolet radiation". United States. https://www.osti.gov/servlets/purl/863309.
@article{osti_863309,
title = {Device and method for noresonantly Raman shifting ultraviolet radiation},
author = {Loree, Thomas R. and Barker, Dean L.},
abstractNote = {A device and method for nonresonantly Raman shifting broad band uv excimer laser radiation, which enhances preselected Stokes signals by varying the pressure of the Raman scattering medium, the focal interaction length of the incident radiation within the Raman scattering medium and its power density level. Gaseous molecular H.sub.2, D.sub.2, CH.sub.4 (methane), HD and mixes thereof, and liquid N.sub.2 are used as the Raman scattering medium to frequency shift the outputs of high power KrF and ArF lasers. A cable fed discharge with an unstable resonant cavity configuration is utilized to produce the output laser power levels required for operation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}

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