Licensing Opportunity Contact Form
Submission of this form should not be interpreted as an offer to license technology. All licenses are subject to negotiation and availablility of the intellectual property for licensing. This form is intended for indications of interest only.
 

Search/Browse Tech

Extended cavity laser absorption spectroscopy

United States Patent

To discuss licensing opportunities, fill out our Contact Form 
10,288,482
May 14, 2019
View the Complete Patent at the US Patent & Trademark Office
Technologies for detecting absorption of electromagnetic radiation traveling through a measurement volume of interest are described herein. In a general embodiment, a laser is used to emit electromagnetic radiation through the measurement volume where absorption is desirably detected. An optical collector receives a portion of the radiation and directs a first fraction of the portion back to a gain medium of the laser, where the radiation is amplified and emitted again, and directs a second fraction to an optical sensor that can detect absorption in the measurement volume based upon attenuation of energy of the radiation. As the radiation feeds back to the gain medium and is emitted again, energy at attenuated wavelengths is amplified less than at other wavelengths. Thus, attenuation of energy of the radiation due to absorption in the measurement volume is cumulative, and relatively small absorptions are amplified, allowing smaller absorptions to be detected more easily.
15/ 014,852
February 3, 2016
1/1
G01J 3/02 (20060101)G01J 3/42 (20060101)G01J 3/12 (20060101)
STATEMENT OF GOVERNMENTAL INTEREST This invention was developed under Contract DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy. The U.S. Government has certain rights in this invention.