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:
Aug. 24, 2021
Filed:
Sep. 14, 2018
Spatially resolved standoff trace chemical sensing using backwards transient absorption spectroscopy
Applicant:
Brown University, Providence, RI (US);
Inventors:
Peter M. Weber, Barrington, RI (US);
Fedor Rudakov, Cambridge, MA (US);
Assignee:
Brown University, Providence, RI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/39 (2006.01);
U.S. Cl.
CPC ...
G01N 21/39 (2013.01); G01N 2021/392 (2013.01); G01N 2021/396 (2013.01); G01N 2201/06113 (2013.01);
Abstract
A system includes a first laser beam including a pulsed laser emanating from the instrument propagates in the air, wherein the first lase beam is tuned to the wavelength at which a target chemical absorbs, its pulses bringing molecules to an excited state, a second laser beam used to probe target chemicals by transient absorption spectroscopy, wherein the second laser beam is pulsed or continuous, and a detector.