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US 2022/0065772 A1Published application
Method and apparatus for enhanced photo-thermal imaging and spectroscopy
AssigneePhotothermal Spectroscopy Corp.
InventorsCraig Prater, Kevin Kjoller, Roshan Shetty
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Abstract
System for performing chemical spectroscopy on samples from the scale of nanometers to millimeters or more with a multifunctional platform combining analytical and imaging techniques including dual beam photo-thermal spectroscopy with confocal microscopy, Raman spectroscopy, fluorescence detection, various vacuum analytical techniques and/or mass spectrometry. In embodiments described herein, the light beams of a dual-beam system are used for heating and sensing.
Claims11
1-29. (canceled)
A method for analyzing a sample, the method comprising:
- a. illuminating a region of the sample with a light beam of infrared radiation;
- b. illuminating at least a sub-region of the sample with a probe light beam having a shorter wavelength than the light beam of infrared radiation;
- c. analyzing probe light collected from the sample to obtain measurements indicative of infrared absorption of the sub-region of the sample;
- and
- d. collecting fluorescent light from the sample in response to stimulation of the sample by the probe light beam.
2 more elements
39-136. (canceled)
Dependencies are inferred from the claim text.