Optics: measuring and testing – By light interference – Spectroscopy
Reexamination Certificate
2007-10-02
2007-10-02
Toatley, Jr., Gregory J. (Department: 2877)
Optics: measuring and testing
By light interference
Spectroscopy
Reexamination Certificate
active
10947640
ABSTRACT:
A photo-thermal, interferometric spectroscopy system is disclosed that provides information about a chemical at a remote location. A first light source assembly is included that emits a first beam. The first beam has one or more wavelengths that interact with the chemical and change a refractive index of the chemical. A second light source produces a second beam. The second beam interacts with the chemical resulting in a third beam with a phase change that corresponds with the change of the refractive index of the chemical. A detector system is positioned remote from the chemical to receive at least a portion of the third beam. The detector system provides information on a phase change in the third beam relative to the second beam that is indicative of at least one of, absorption spectrum and concentration of the chemical.
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Achiam Yaakov
Cho Pak Shing
Khurgin Jacob B.
Shpantzer Isaac
Celight, Inc.
Lyons Michael A.
Toatley , Jr. Gregory J.
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