公开(公告)号：US20230251190A1

公开(公告)日：2023-08-10

申请号：US18003131

申请日：2021-06-25

Applicant: Photothermal Spectroscopy Corp.

Inventor： Craig PRATER

IPC: G01N21/359 ,  G01J3/42 ,  A61B1/00

CPC classification number: G01N21/359 ,  G01J3/42 ,  A61B1/00167 ,  G01N2021/3595

Abstract: Improvements in spectroscopy are disclosed herein that rely on the interaction of both an infrared beam and a probe beam with a sample. These beams are used in a pump-probe arrangement, with a fiber optic probe collecting the beams of infrared and probe radiation from the infrared source and delivering it to the sample. At least a portion of the beam of infrared radiation and the beam of probe radiation overlap one another on the sample. The fiber also collects probe radiation that has interacted with the sample. A detector can use this collected signal to indicate an intensity of the collected probe radiation, and an analyzer can generate a signal indicative of infrared absorption of the sample adjacent the fiber.