The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2014
Filed:
Aug. 21, 2009
Jerry C. Carter, Livermore, CA (US);
James W. Chan, Elk Grove, CA (US);
James E. Trebes, Livermore, CA (US);
Stanley M. Angel, Columbia, SC (US);
Boris Mizaikoff, Ulm, DE;
Jerry C. Carter, Livermore, CA (US);
James W. Chan, Elk Grove, CA (US);
James E. Trebes, Livermore, CA (US);
Stanley M. Angel, Columbia, SC (US);
Boris Mizaikoff, Ulm, DE;
Lawrence Livermore National Security, LLC, Livermore, CA (US);
University of South Carolina, Columbia, SC (US);
Georgia Tech Research Corporation, Atlanta, GA (US);
Abstract
A double-pass fiber-optic based spectroscopic gas sensor delivers Raman excitation light and infrared light to a hollow structure, such as a hollow fiber waveguide, that contains a gas sample of interest. A retro-reflector is placed at the end of this hollow structure to send the light back through the waveguide where the light is detected at the same end as the light source. This double pass retro reflector design increases the interaction path length of the light and the gas sample, and also reduces the form factor of the hollow structure.