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:
Feb. 28, 2023
Filed:
Sep. 04, 2019
Applicant:
California Institute of Technology, Pasadena, CA (US);
Inventors:
Assignee:
California Institute of Technology, Pasadena, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B 21/00 (2006.01); G02B 21/02 (2006.01);
U.S. Cl.
CPC ...
G02B 21/0028 (2013.01); G02B 21/008 (2013.01); G02B 21/0036 (2013.01); G02B 21/0052 (2013.01); G02B 21/02 (2013.01);
Abstract
Apparatus and methods for measuring infrared absorption of a sample that includes delivering a pulse of infrared radiation to a region of the sample, delivering pulses of radiation of a shorter wavelength than infrared radiation to a sub-region within the region, and using one or more properties of the induced photoacoustic signals to create a signal indicative of infrared absorption of the sub-region of the sample.