PHOTOACOUSTIC REMOTE SENSING (PARS), AND RELATED METHODS OF USE

    公开(公告)号:US20210404948A1

    公开(公告)日:2021-12-30

    申请号:US16629371

    申请日:2019-12-19

    Abstract: A photoacoustic remote sensing system (PARS) for imaging a subsurface structure in a sample, comprising one or more laser sources configured to generate a plurality of excitation beams configured to generate pressure signals in the sample at an excitation location, and a plurality of interrogation beams incident on the sample at the excitation location, a portion of the plurality of interrogation beams returning from the sample that is indicative of the generated pressure signals, an optical system configured to focus the plurality of excitation beams at a first focal point and the plurality of interrogation beams at a second focal point, the first and second focal points being below the surface of the sample, and a plurality of detectors each configured to detect a returning portion of at least one of the plurality of interrogation beams.

    NON-INTERFEROMETRIC PHOTOACOUSTIC REMOTE SENSING (NI-PARS)

    公开(公告)号:US20190320908A1

    公开(公告)日:2019-10-24

    申请号:US16402972

    申请日:2019-05-03

    Abstract: A photoacoustic remote sensing system (NI-PARS) for imaging a subsurface structure in a sample, has an excitation beam configured to generate ultrasonic signals in the sample at an excitation location; an interrogation beam incident on the sample at the excitation location, a portion of the interrogation beam returning from the sample that is indicative of the generated ultrasonic signals; an optical system that focuses at least one of the excitation beam and the interrogation beam with a focal point that is below the surface of the sample; and a detector that detects the returning portion of the interrogation beam.

    PHOTOACOUSTIC REMOTE SENSING (PARS)

    公开(公告)号:US20220265148A1

    公开(公告)日:2022-08-25

    申请号:US17693690

    申请日:2022-03-14

    Abstract: A photoacoustic remote sensing system (PARS) for imaging a subsurface structure in a sample has an excitation beam configured to generate ultrasonic signals in the sample at an excitation location; an interrogation beam incident on the sample at the excitation location, a portion of the interrogation beam returning from the sample that is indicative of the generated ultrasonic signals; an optical system that focuses at least one of the excitation beam and the interrogation beam with a focal point that is below the surface of the sample; and a detector that detects the returning portion of the interrogation beam.

    PHOTOACOUSTIC REMOTE SENSING (PARS)
    5.
    发明申请

    公开(公告)号:US20200237232A1

    公开(公告)日:2020-07-30

    申请号:US16847182

    申请日:2020-04-13

    Abstract: A photoacoustic remote sensing system (PARS) for imaging a subsurface structure in a sample has an excitation beam configured to generate ultrasonic signals in the sample at an excitation location; an interrogation beam incident on the sample at the excitation location, a portion of the interrogation beam returning from the sample that is indicative of the generated ultrasonic signals; an optical system that focuses at least one of the excitation beam and the interrogation beam with a focal point that is below the surface of the sample; and a detector that detects the returning portion of the interrogation beam.

    PHOTOACOUSTIC REMOTE SENSING (PARS), AND RELATED METHODS OF USE

    公开(公告)号:US20240393232A1

    公开(公告)日:2024-11-28

    申请号:US18794808

    申请日:2024-08-05

    Abstract: A photoacoustic remote sensing system (PARS) for imaging a subsurface structure in a sample, comprising one or more laser sources configured to generate a plurality of excitation beams configured to generate pressure signals in the sample at an excitation location, and a plurality of interrogation beams incident on the sample at the excitation location, a portion of the plurality of interrogation beams returning from the sample that is indicative of the generated pressure signals, an optical system configured to focus the plurality of excitation beams at a first focal point and the plurality of interrogation beams at a second focal point, the first and second focal points being below the surface of the sample, and a plurality of detectors each configured to detect a returning portion of at least one of the plurality of interrogation beams.

    PHOTOACOUSTIC REMOTE SENSING (PARS), AND RELATED METHODS OF USE

    公开(公告)号:US20240044777A1

    公开(公告)日:2024-02-08

    申请号:US18488665

    申请日:2023-10-17

    CPC classification number: G01N21/1702 A61B5/0095

    Abstract: A photoacoustic remote sensing system (PARS) for imaging a subsurface structure in a sample, comprising one or more laser sources configured to generate a plurality of excitation beams configured to generate pressure signals in the sample at an excitation location, and a plurality of interrogation beams incident on the sample at the excitation location, a portion of the plurality of interrogation beams returning from the sample that is indicative of the generated pressure signals, an optical system configured to focus the plurality of excitation beams at a first focal point and the plurality of interrogation beams at a second focal point, the first and second focal points being below the surface of the sample, and a plurality of detectors each configured to detect a returning portion of at least one of the plurality of interrogation beams.

    PHOTON ABSORPTION REMOTE SENSING SYSTEM FOR HISTOLOGICAL ASSESSMENT OF TISSUES

    公开(公告)号:US20240394880A1

    公开(公告)日:2024-11-28

    申请号:US18794662

    申请日:2024-08-05

    Abstract: An imaging apparatus may be used for histological and/or molecular imaging of a tissue sample. An imaging apparatus may include one or more light sources that generate one or more excitation beams directed toward an excitation location being focused on the sample to generate signals in the sample and one or more interrogation beams directed toward a detection location such that a portion of the one or more interrogation beams returning from the sample is indicative of at least some of the generated signals. An imaging apparatus may include a photodetector configured to detect radiative signals from the sample. An imaging apparatus may generate an image of the sample using only pressure (photoacoustic) signals, only temperature (photothermal) signals, and/or both photoacoustic and photothermal signals from the generated signals.

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