公开(公告)号：US20220381684A1

公开(公告)日：2022-12-01

申请号：US17600438

申请日：2019-12-10

申请人： Purdue Research Foundation

发明人： Ji-Xin CHENG ,  Yeran BAI ,  Delong ZHANG ,  Ali SHAKOURI ,  D. Kerry MAIZE

IPC分类号： G01N21/3577

摘要： Systems and methods for detecting photothermal effect in a sample are described herein. In these systems and methods, a pump source is configured to generate a pump pulse train, a probe source is configured to generate a probe pulse train and is synchronized with the pump pulse train, and a camera collects the resulting data. The camera is configured to collect a first signal corresponding to a hot frame, wherein the hot frame includes visible probe beam as modified by a pump beam and a second signal corresponding to a cold frame, wherein the cold frame includes visible probe beam that has not been modified by a pump beam. A processor can subtract the second signal from the first signal to detect the photothermal effect.

公开(公告)号：US20240159667A1

公开(公告)日：2024-05-16

申请号：US18511574

申请日：2023-11-16

申请人： Purdue Research Foundation

发明人： Ji-Xin CHENG ,  Yeran BAI ,  Delong ZHANG ,  Ali SHAKOURI ,  D. Kerry MAIZE

IPC分类号： G01N21/3577

CPC分类号： G01N21/3577 ,  G01N2201/06113

摘要： Systems and methods for detecting photothermal effect in a sample are described herein. In these systems and methods, a pump source is configured to generate a pump pulse train, a probe source is configured to generate a probe pulse train and is synchronized with the pump pulse train, and a camera collects the resulting data. The camera is configured to collect a first signal corresponding to a hot frame, wherein the hot frame includes visible probe beam as modified by a pump beam and a second signal corresponding to a cold frame, wherein the cold frame includes visible probe beam that has not been modified by a pump beam. A processor can subtract the second signal from the first signal to detect the photothermal effect.