Optics: measuring and testing – By dispersed light spectroscopy – With raman type light scattering
Patent
1996-07-10
1997-09-30
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
With raman type light scattering
356328, G01J 318, G01J 344
Patent
active
056731094
ABSTRACT:
A Raman gas analysis system uses a half-wave plate to match the polarization of Raman scattered light emitted from a gas analysis cell to a preferred polarization orientation of a diffraction grating. The gas analysis system includes a plasma discharge tube for generating a polarized light beam; a gas analysis cell for containing a sample gas which produces Raman scattered light in response to being irradiated with the polarized light beam; an optical subsystem for collecting and providing the Raman scattered light with a preferred polarization orientation; a holographic diffraction grating for dispersing the Raman scattered light into component light signals; and an array detector for detecting the component light signals.
REFERENCES:
patent: Re34153 (1992-12-01), Benner et al.
patent: 3414354 (1968-12-01), Siegler, Jr.
patent: 4676639 (1987-06-01), Van Wagenen
patent: 4784486 (1988-11-01), Van Wagenen et al.
patent: 5135304 (1992-08-01), Miles et al.
patent: 5153671 (1992-10-01), Miles
patent: 5233405 (1993-08-01), Wildnauer et al.
patent: 5245405 (1993-09-01), Mitchell et al.
patent: 5341206 (1994-08-01), Pittaro et al.
patent: 5408314 (1995-04-01), Perry et al.
patent: 5432610 (1995-07-01), King et al.
patent: 5452084 (1995-09-01), Mitchell et al.
patent: 5521703 (1996-05-01), Mitchell
Weber, et al., "High-Resolution Raman Spectroscopy of Gases With Laser Sources, V. Use of the Single-Mode Argon Laser", Journal of the Optical Society of America, vol. 62, No. 3, Mar. 1972, pp. 428-432.
Hickman et al., "Intracavity Laser Raman Spectroscopy Using a Commercial laser", Applied Spectroscopy, vol. 27, No. 6, 1973, pp. 425-427.
Hercher et al., "An Efficient Intracavity Laser Raman Spectrometer", Applied Spectroscopy, vol. 32, no. 3, 1978, pp. 298-301.
Neeley et al., "Moderification of a Commerical Argon Ion Laser for Enhancement of Gas Phase Raman Scattering", Applied Spectroscopy, vol. 26, No. 5, 1972, pp. 553-555.
Weber et al., "High-Resolution Raman Spectroscopy of Gases with cw-Laser Excitation", Journal of the Optical Society of America, vol. 57, No. 1, Jan. 1967, pp. 19-28.
Barrett et al., "Laser-Excited Rotation-Vibration Raman Scattering in Ultra-Small Gas Samples", Journal of the Optical Society of America, vol. 58, No. 3, Mar. 1968, pp. 311-319.
D.A. Long, Raman Spectroscopy, McGraw-Hill, New York, 1977, Ch. 6 "Experimental Procedures", pp. 132-145.
Epperson Dennis H.
Evans F. L.
Ohmeda Inc.
Pace Salvatore P.
Rathbun Roger M.
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