Optics: measuring and testing – By dispersed light spectroscopy – With raman type light scattering
Patent
1980-08-22
1983-08-09
Padgett, Benjamin R.
Optics: measuring and testing
By dispersed light spectroscopy
With raman type light scattering
362293, 356417, G01J 0344
Patent
active
043975569
ABSTRACT:
In materials-testing involving comparative examination of the surface of a particular material specimen, specimen surfaces are irradiated with monochromatic light and the Raman spectra of the specimen surfaces are recorded only for certain predetermined spectral regions, the spectral regions having been predetermined through prior recording of the Raman spectra of comparison bodies of different surface character, from which prior recording lines of the spectra which depend on surface character have been selected and classified in accordance with their characteristic properties; characteristic line properties for the specimen recordings are compared to those for the comparison-body recordings in order to make a determination of whether the specimen surfaces are of the acceptable quality represented by the comparison-body surfaces.
REFERENCES:
patent: 4030827 (1977-06-01), Delhaye et al.
Heritage, J. P., International Conference on Picosecond Phenomena Springer Series in Chemical Physics, vol. 14, pp. 343-347 (1980).
Silberman et al., Applied Spectroscopy, vol. 32, pp. 352-355 (1978), "High Resolution Interferometric Accessory for Raman Spectrometers".
Schoen et al., Applied Spectroscopy, vol. 33, pp. 178 (1979), "Fabrey-Perot Prefilter for Raman Spectorscopy".
Gardiner, D. J., Analytical Chemistry, vol. 52, pp. 96R-100R (1980), "Raman Spectroscopy".
Carl Zeiss-Stiftung
Moskowitz M.
Padgett Benjamin R.
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