Optical apparatus using reflection geometry

    公开(公告)号:US10976197B2

    公开(公告)日:2021-04-13

    申请号:US16668943

    申请日:2019-10-30

    Abstract: Provided is an optical apparatus using reflection geometry. The optical apparatus includes a lens element disposed to face an object to be measured, a light source generating an incident beam that passes through the lens element to be incident on the object, and a photodetector receiving light that is scattered by the object. The incident beam is obliquely incident on the object off an optical center axis of the lens element, without passing through the optical center axis. The scattered light is transmitted to the photodetector by passing through the optical center axis of the focusing lens element and a region therearound.

    Collection optics system for spectrometer and Raman spectral system

    公开(公告)号:US10520438B2

    公开(公告)日:2019-12-31

    申请号:US16034609

    申请日:2018-07-13

    Abstract: A collection optics system for a spectrometer and a Raman spectral system including the collection optics system is provided. The collection optics system is configured to selectively collect a Raman signal from scattered light output from a target object, the collection optics system includes a non-imaging collection unit configured to collect the Raman signal and output the Raman signal, the non-imaging collection unit including an entrance surface on which the scattered light is incident and an exit surface through which the Raman signal is output, and a Raman filter provided on a portion of the entrance surface of the non-imaging collection unit and configured to block the scattered light including a fluorescence signal. Therefore, the collection optics system may suppress reception of the fluorescence signal of the scattered light and selectively collect the Raman signal.

    Surface-enhanced Raman scattering patch and Raman spectroscopy system adopting the same

    公开(公告)号:US10921258B2

    公开(公告)日:2021-02-16

    申请号:US16456652

    申请日:2019-06-28

    Abstract: Provided is a surface-enhanced Raman scattering (SERS) patch configured to be brought into contact with an object and amplify Raman light generated from the object that is irradiated by laser light. The SERS patch includes a flexible substrate including a first surface facing the object and a second surface opposite to the first surface, a SERS layer provided on the first surface and configured to amplify the Raman light generated from the object based on surface plasmons, and a metalens provided on the first surface or the second surface of the flexible substrate, the metalens being configured to focus at least one of the laser light and the amplified Raman light in a propagation direction thereof.

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