Systems and methods for bond-selective transient phase imaging
US10845248B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | May 1, 2020 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | May 1, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/1712
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.