Optics: measuring and testing – By dispersed light spectroscopy – With raman type light scattering
Reexamination Certificate
2011-04-26
2011-04-26
Toatley, Gregory J (Department: 2877)
Optics: measuring and testing
By dispersed light spectroscopy
With raman type light scattering
C250S282000, C250S288000, C250S482100, C356S073000, C356S300000, C356S326000
Reexamination Certificate
active
07933013
ABSTRACT:
A system and method are provided for detecting presence of a material of interest on a surface or in a space using spectroscopic techniques. A beam of ultraviolet light is directed to the surface or space to achieve photodissociation of a material of interest in order to produce photofragment molecules that fluoresce when excited by ultraviolet light. Raman scattering of the parent target material and laser-induced fluorescence of the daughter photofragments are collected from the surface or space that may be induced by the beam of ultraviolet light. Raman spectra and fluorescence spectra are generated from the captured Raman scattering and fluorescence. The fluorescence spectra associated with the daughter photofragment molecules and the Raman spectra of the parent target material are analyzed to determine presence of the material of interest on the surface or in the space.
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Alli Iyabo S
Edell Shapiro & Finnan LLC
ITT Manufacturing Enterprises Inc.
Toatley Gregory J
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