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    METHOD OF MAKING A METAMATERIAL DEVICE
    35.
    发明申请
    METHOD OF MAKING A METAMATERIAL DEVICE 有权

    公开(公告)号：US20220397702A9

    公开(公告)日：2022-12-15

    申请号：US16835302

    申请日：2020-03-31

    Applicant: Purdue Research Foundation

    Inventor： Urcan Guler ,  Alexander V. Kildishev ,  Krishnakali Chaudhury ,  Shaimaa Azzam ,  Esteban E. Marinero-Caceres ,  Harsha Reddy ,  Alexandra Boltasseva ,  Vladimir M. Shalaev

    IPC: G02B1/00 ,  G01N21/84

    Abstract: An optical sensor system, comprising refractory plasmonic elements that can withstand temperatures exceeding 2500° C. in chemically aggressive and harsh environments that impose stress, strain and vibrations. A plasmonic metamaterial or metasurface, engineered to have a specific spectral and angular response, exhibits optical reflection characteristics that are altered by varying physical environmental conditions including but not limited to temperature, surface chemistry or elastic stress, strain and other types of mechanical load. The metamaterial or metasurface comprises a set of ultra-thin structured layers with a total thickness of less than tens of microns that can be deployed onto surfaces of devices operating in harsh environmental conditions. The top interface of the metamaterial or metasurface is illuminated with a light source, either through free space or via an optical fiber, and the reflected signal is detected employing remote detectors.

    METHOD OF MAKING METAMATERIAL DEVICE
    37.
    发明申请
    METHOD OF MAKING METAMATERIAL DEVICE 有权

    公开(公告)号：US20210302623A1

    公开(公告)日：2021-09-30

    申请号：US16835302

    申请日：2020-03-31

    Applicant: Purdue Research Foundation

    Inventor： Urcan Guler ,  Alexander V. Kildishev ,  Krishnakali Chaudhury ,  Shaimaa Azzam ,  Esteban E. Marinero-Caceres ,  Harsha Reddy ,  Alexandra Boltasseva ,  Vladimir M. Shalaev

    IPC: G02B1/00 ,  G01N21/84

    Abstract: An optical sensor system, comprising refractory plasmonic elements that can withstand temperatures exceeding 2500° C. in chemically aggressive and harsh environments that impose stress, strain and vibrations. A plasmonic metamaterial or metasurface, engineered to have a specific spectral and angular response, exhibits optical reflection characteristics that are altered by varying physical environmental conditions including but not limited to temperature, surface chemistry or elastic stress, strain and other types of mechanical load. The metamaterial or metasurface comprises a set of ultra-thin structured layers with a total thickness of less than tens of microns that can be deployed onto surfaces of devices operating in harsh environmental conditions. The top interface of the metamaterial or metasurface is illuminated with a light source, either through free space or via an optical fiber, and the reflected signal is detected employing remote detectors.

    ALL-OPTICAL WRITE/READ SCHEME FOR MAGNETIC NANOSTRUCTURES
    38.
    发明申请
    ALL-OPTICAL WRITE/READ SCHEME FOR MAGNETIC NANOSTRUCTURES 审中-公开

    公开(公告)号：US20200371026A1

    公开(公告)日：2020-11-26

    申请号：US16990754

    申请日：2020-08-11

    Applicant: Purdue Research Foundation

    Inventor： Aveek Dutta ,  Vladimir M. Shalaev ,  Alexandra Boltasseva ,  Esteban E. Marinero-Caceres

    IPC: G01N21/552 ,  G01N21/01 ,  G01R33/12

    Abstract: A system of writing to and reading from a magnetic nanostructure is disclosed which includes an opto-magnetic write arrangement including a polarizer configured to receive incident light and provide a circularly or linearly polarized light, wherein light polarization is controlled by the polarizer and its orientation with respect to polarization of the incident light, a nanomagnetic structure configured to receive the polarized light including a substrate, and a nanomagnetic stack including a nanomagnet, and a capping layer, wherein the nanomagnetic stack is configured to receive the polarized light and thereby switch orientation of a magnetic moment associated with the magnetic nanostructure whereby the magnetic moment direction specifies a bit value held in the magnetic structure, and a magnetic read arrangement, configured to receive and interpret an optical signal from the magnetic nanostructure indicating the magnetic moment orientation from the nanomagnetic stack.

    TUNABLE PLASMONIC COLOR DEVICE AND METHOD OF MAKING THE SAME
    40.
    发明申请
    TUNABLE PLASMONIC COLOR DEVICE AND METHOD OF MAKING THE SAME 审中-公开

    公开(公告)号：US20190353830A1

    公开(公告)日：2019-11-21

    申请号：US16411038

    申请日：2019-05-13

    Applicant: Purdue Research Foundation

    Inventor： Alexander V. Kildishev ,  Di Wang ,  Zhaxylyk A. Kudyshev ,  Maowen Song ,  Alexandra Boltasseva ,  Vladimir M. Shalaev

    IPC: G02B5/00 ,  G11B7/1381 ,  G11B7/125

    Abstract: A plasmonic system is disclosed. The system includes at least one polarizer that is configured to provide at least one linearly polarized broadband light beam, an anisotropic plasmonic metasurface (APM) assembly having a plurality of nanoantennae each having a predetermined orientation with respect to a global axis representing encoded digital data, the APM assembly configured to receive the at least one linearly polarized broadband light beam and by applying localized surface plasmon resonance reflect light with selectable wavelengths associated with the predetermined orientations of the nano antennae, and at least one analyzer that is configured to receive the reflected light with selectable wavelength, wherein the relative angles between each of the at least one analyzers and each of the at least one polarizers are selectable with respect to the global axis, thereby allowing decoding of the digital data.

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