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Title: Method and apparatus for optoacoustic spectroscopy

Abstract

A method and apparatus that significantly increases the sensitivity and flexibility of laser optoacoustic spectroscopy, with reduced size. With the method, it no longer is necessary to limit the use of laser optoacoustic spectroscopy to species whose absorption must match available laser radiation. Instead, "doping" with a relatively small amount of an optically absorbing gas yields optoacoustic signatures of nonabsorbing materials (gases, liquids, solids, and aerosols), thus significantly increasing the sensitivity and flexibility of optoacoustic spectroscopy. Several applications of this method are demonstated and/or suggested.

Inventors:
 [1]
  1. Berkeley, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
863401
Patent Number(s):
4163382
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; optoacoustic; spectroscopy; significantly; increases; sensitivity; flexibility; laser; reduced; size; limit; species; absorption; match; available; radiation; doping; relatively; amount; optically; absorbing; gas; yields; signatures; nonabsorbing; materials; gases; liquids; solids; aerosols; increasing; applications; demonstated; suggested; significantly increases; absorbing material; laser radiation; reduced size; optoacoustic spectroscopy; match available; significantly increase; sorbing material; available laser; /73/250/

Citation Formats

Amer, Nabil M. Method and apparatus for optoacoustic spectroscopy. United States: N. p., 1979. Web.
Amer, Nabil M. Method and apparatus for optoacoustic spectroscopy. United States.
Amer, Nabil M. Mon . "Method and apparatus for optoacoustic spectroscopy". United States. https://www.osti.gov/servlets/purl/863401.
@article{osti_863401,
title = {Method and apparatus for optoacoustic spectroscopy},
author = {Amer, Nabil M},
abstractNote = {A method and apparatus that significantly increases the sensitivity and flexibility of laser optoacoustic spectroscopy, with reduced size. With the method, it no longer is necessary to limit the use of laser optoacoustic spectroscopy to species whose absorption must match available laser radiation. Instead, "doping" with a relatively small amount of an optically absorbing gas yields optoacoustic signatures of nonabsorbing materials (gases, liquids, solids, and aerosols), thus significantly increasing the sensitivity and flexibility of optoacoustic spectroscopy. Several applications of this method are demonstated and/or suggested.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}

Patent:

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