An Apparatus, a Handheld Electronic Device, and a Method for Carrying Out Raman Spectroscopy

    公开(公告)号:US20230041170A1

    公开(公告)日:2023-02-09

    申请号:US17758549

    申请日:2020-12-16

    IPC分类号: G01N21/65

    摘要: In an embodiment an apparatus includes at least one optoelectronic laser configured to provide excitation radiation to a sample, the excitation radiation being generated by an electric current flowing through the at least one optoelectronic laser, a transistor configured to modulate the electric current flowing through the at least one optoelectronic laser in order to switch on and off generation of the excitation radiation and a spectrometer configured to analyze Raman light scattered from the sample in response to exposing the sample to the excitation radiation, wherein the Raman light includes one or more spectral components, wherein the spectrometer includes a diffraction element configured to split the Raman light into the spectral components, and wherein the diffraction element includes at least a photonic crystal or a plasmonic Fabry Perot filter.

    OPTOELECTRONIC MODULE, METHOD FOR OPERATING AN OPTOELECTRONIC MODULE AND HEAD-MOUNTED DISPLAY

    公开(公告)号:US20220091444A1

    公开(公告)日:2022-03-24

    申请号:US17028539

    申请日:2020-09-22

    摘要: An optoelectronic module comprising at least one semiconductor laser and a photonic chip is described herein. The semiconductor laser emits a primary electromagnetic radiation which is coupled into the photonic chip. The photonic chip comprises at least one first waveguide and at least one optical Bragg reflector having a reflectivity which is modulated by an electrical modulation signal. A secondary electromagnetic radiation is coupled out of the photonic chip by means of at least one second waveguide, wherein the secondary electromagnetic radiation has a dominant wavelength which is modulated in dependence of the electrical modulation signal. Further, a method for operating an optoelectronic module and a Head-Mounted Display comprising an optoelectronic module are provided.

    Optoelectronic module, method for operating an optoelectronic module and head-mounted display

    公开(公告)号:US11353726B2

    公开(公告)日:2022-06-07

    申请号:US17028539

    申请日:2020-09-22

    摘要: An optoelectronic module comprising at least one semiconductor laser and a photonic chip is described herein. The semiconductor laser emits a primary electromagnetic radiation which is coupled into the photonic chip. The photonic chip comprises at least one first waveguide and at least one optical Bragg reflector having a reflectivity which is modulated by an electrical modulation signal. A secondary electromagnetic radiation is coupled out of the photonic chip by means of at least one second waveguide, wherein the secondary electromagnetic radiation has a dominant wavelength which is modulated in dependence of the electrical modulation signal. Further, a method for operating an optoelectronic module and a Head-Mounted Display comprising an optoelectronic module are provided.

    Apparatus, a Handheld Electronic Device, and a Method for Carrying Out Raman Spectroscopy

    公开(公告)号:US20210215609A1

    公开(公告)日:2021-07-15

    申请号:US16743742

    申请日:2020-01-15

    IPC分类号: G01N21/65

    摘要: An apparatus, a handheld electronic device and a method for carrying out Raman Spectroscopy are disclosed. In an embodiment an apparatus includes at least one optoelectronic laser configured to provide excitation radiation to a sample, the excitation radiation being generated by an electric current flowing through the at least one optoelectronic laser during operation of the apparatus and a transistor configured to modulate the electric current flowing through the at least one optoelectronic laser, to thereby switch on and off generation of the excitation radiation.