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.

Date of Patent:
Nov. 24, 2020

Filed:

May. 01, 2020
Applicants:

Trustees of Boston University, Boston, MA (US);

Purdue Research Foundation, West Lafayette, IN (US);

Inventors:

Ji-Xin Cheng, Newton, MA (US);

Delong Zhang, Brownsburg, IN (US);

Lu Lan, West Lafayette, IN (US);

Assignees:

Trustees of Boston University, Boston, MA (US);

Purdue Research Foundation, West Lafayette, IN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 5/08 (2006.01); G02F 1/125 (2006.01); H01S 3/094 (2006.01); G01J 5/00 (2006.01);
U.S. Cl.
CPC ...
G01J 5/0821 (2013.01); G02F 1/125 (2013.01); H01S 3/094076 (2013.01); G01J 2005/0077 (2013.01);
Abstract

A method includes directing a first plurality of probe laser pulses through a sample, dividing each of the first plurality of probe laser pulses to generate a first interferogram, and generating first image data reproducible as a first phase image of the sample. A plurality of pump laser bursts are directed onto the sample to heat the sample. A second plurality of probe laser pulses are directed through the sample at a predetermined time delay. Each of the second plurality of probe laser pulses are divided to generate a second interferogram. Second image data is generated that is reproducible as a second phase image of the sample. A transient phase shift is determined in the second phase image relative to the first phase image. A vibrational spectroscopy property is determined of the sample based on the transient phase shift, thereby allowing an identification of chemical bond information of within the sample.


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