Integrated device for fluid analysis

    公开(公告)号:US12228510B2

    公开(公告)日:2025-02-18

    申请号:US16885186

    申请日:2020-05-27

    Abstract: Aspects relate to a miniaturized gas cell that may be implemented into an integrated device for gas analysis. The miniaturized gas cell may be a multi-pass gas cell or a hollow waveguide gas cell. In some aspects, the miniaturized gas cell may include a bottom surface and sidewalls formed in a substrate (e.g., a silicon substrate or silicon on insulator (SOI) substrate). The gas cell further includes at least one gas inlet and at least one gas outlet coupled for injection of a gas into and out of the gas cell, respectively. In addition, the gas cell further includes an optical input and an optical output, each optically coupled to direct light into and out of the gas cell, respectively. In addition, a capping layer may be bonded to the substrate to form a top surface of the gas cell.

    LARGE SPOT SIZE SPECTROMETER
    34.
    发明申请

    公开(公告)号:US20220390277A1

    公开(公告)日:2022-12-08

    申请号:US17828747

    申请日:2022-05-31

    Abstract: Aspects relate to an optical device providing a large spot size spectrometer. The optical device includes an optical head, an optical window, and a spectrometer. The optical head includes a plastic molded part having an aperture and a plurality of reflectors around the aperture formed therein. Each reflector may include a respective lamp assembled therein. The optical window is configured to receive a sample, to pass input light from the lamps to the sample and to pass scattered light from the sample towards the aperture. The aperture is configured to filter a first portion of scattered light containing unusable sample information and to pass a second portion of the scattered light to the spectrometer.

    INTEGRATED EVANESCENT WAVE SPECTRAL SENSING DEVICE

    公开(公告)号:US20220260419A1

    公开(公告)日:2022-08-18

    申请号:US17671983

    申请日:2022-02-15

    Abstract: Aspects relate to an integrated and compact attenuated total internal reflection (ATR) spectral sensing device. The spectral sensing device includes a substrate, a spectrometer, and a detector. The substrate includes an ATR element, a microfluidic channel, and a channel interface at a boundary between the ATR element and the microfluidic channel formed therein. The ATR element is configured to receive input light and to direct the input light to the channel interface for total internal reflection of the input light at the channel interface. An evanescent wave produced by a sample contained within the microfluidic channel based on the total internal reflection of the input light attenuates the light output from the ATR element and the resulting output light may be analyzed using the spectrometer and the detector.

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