Optics: measuring and testing – By dispersed light spectroscopy – With raman type light scattering
Reexamination Certificate
2006-11-21
2006-11-21
Lauchman, Layla G. (Department: 2877)
Optics: measuring and testing
By dispersed light spectroscopy
With raman type light scattering
Reexamination Certificate
active
07139072
ABSTRACT:
A thermoelectrically cooled surface-enhanced Raman Spectroscopy (TEC-SERS) fiber optic probe for real-time and in-situ monitoring of volatile organic compounds in gas, liquid, and soil environments. The TEC-SERS probe comprises a sample chamber for receiving a gas sample and a fiber optic Raman probe. The sample chamber comprises an inlet having a semipermeable membrane for separating moisture from the gas sample, a SERS substrate mounted on a thermoelectric cooler, a mass flow device for providing airflow, and an output port. The fiber optic Raman probe is operably coupled to a transparent window in the sample chamber for directing an optical excitation signal to irradiate the SERS substrate and for receiving a SERS optical signal from analytes from the gas sample that are in contact with the SERS substrate.
REFERENCES:
patent: 4886358 (1989-12-01), Pellenbarg et al.
patent: 6967717 (2005-11-01), Boss et al.
Anderson Gregory W.
Boss Pamela A.
Lieberman Stephen H.
Kagan Michael A.
Lauchman Layla G.
Lee Allan Y.
Lipovsky Peter A.
The United States of America as represented by the Secretary of
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