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    ELECTRODIALYZER AND ELECTRODIALYSIS SYSTEM FOR CO2 CAPTURE FROM OCEAN WATER
    71.
    发明申请
    ELECTRODIALYZER AND ELECTRODIALYSIS SYSTEM FOR CO2 CAPTURE FROM OCEAN WATER 有权

    公开(公告)号：US20220144673A1

    公开(公告)日：2022-05-12

    申请号：US17522241

    申请日：2021-11-09

    Applicant: California Institute of Technology

    Inventor： Chengxiang Xiang ,  Harry A. Atwater ,  Ibadillah A. Digdaya

    IPC: C02F1/469 ,  C02F1/461

    Abstract: Disclosed are electrochemical systems that include an electrodialyzer and a vapor-fed CO2 reduction (CO2R) cell to capture and convert CO2 from ocean water. The electrodialyzer includes a stack of bipolar membrane electrodialysis (BPMED) cells between end electrodes. The electrodialzyer incorporates monovalent cation exchange membranes (M-CEMs) that prevent the transfer of multivalent cations between adjacent cell compartments, allowing continuous recirculation of electrolytes and solutions, and thus providing a safer and more scaling-free electrodialysis system. In some embodiments, the electrodialyzer may be configured to replace the water-splitting reaction at end electrodes with one-electron, reversible redox couples in solution at the electrodes. As a result, in the entire electrodialyzer stack, there is no bond-making, bond-breaking reactions and there is no gas generation, which significantly simplifies the cell design and improves operational safety. The systems provide a unique technological pathway for CO2 capture and conversion from ocean water with only electrochemical processes.

    Narrowband light filters
    74.
    发明授权
    Narrowband light filters 有权

    公开(公告)号：US10818711B2

    公开(公告)日：2020-10-27

    申请号：US15961819

    申请日：2018-04-24

    Applicant: California Institute of Technology

    Inventor： Dagny Fleischman ,  Harry A. Atwater

    IPC: H01L31/0232 ,  H01L27/146 ,  G02B5/20 ,  G03C7/12 ,  G03F7/00

    Abstract: Narrowband light filters, and methods of manufacturing such light filters, are provided. A narrowband light filter may include at least two electrically conductive bodies, an electrically conductive thin film layer disposed between the at least two electrically conductive bodies, at least one protective oxide layer disposed on the thin film layer and electrically conductive bodies, and at least one slit disposed through the electrically conductive thin layer. In various embodiments, the electrically conductive bodies give the narrowband light filter a mirrored structure in exemplary embodiments of the invention. The narrowband filters may also include one or more slits. Multiple slits may be configured to make the narrowband filtration polarization-independent. A plurality of narrowband light filters may be configured into pixel arrays. Pixel arrays may also be used in multispectral or hyperspectral imaging apparatus and techniques.

    Systems and methods for implementing electrically tunable metasurfaces
    76.
    发明授权
    Systems and methods for implementing electrically tunable metasurfaces 有权

    公开(公告)号：US10775648B2

    公开(公告)日：2020-09-15

    申请号：US15967445

    申请日：2018-04-30

    Applicant: California Institute of Technology

    Inventor： Harry A. Atwater

    IPC: H01Q15/02 ,  G02F1/00 ,  G02B1/00 ,  G02B26/02 ,  G02F1/01 ,  B82Y20/00

    Abstract: Systems and methods in accordance with embodiments of the invention implement electrically tunable metasurfaces. In one embodiment, an electrically tunable metasurface reflectarray includes: a mirrored surface; a conductive layer; a dielectric layer; where the conductive layer and the dielectric layer are in direct contact, and thereby define a conductor-dielectric interface; a plurality of subwavelength antenna elements; and an electrical power source configured to establish a potential difference between at least one subwavelength antenna element and the mirrored surface; where a potential difference between a subwavelength antenna element and the mirrored surface applies an electric field to a corresponding region of the electrically tunable metasurface reflectarray; where any applied electric fields in conjunction with the geometry and the material composition of each of the subwavelength antenna elements, the conductive layer, and the dielectric layer, enable the electrically tunable metasurface reflectarray to measurably augment the propagation characteristics of incident electromagnetic waves.

    Windows Implementing Effectively Transparent Conductors and Related Methods of Manufacturing
    77.
    发明申请
    Windows Implementing Effectively Transparent Conductors and Related Methods of Manufacturing 审中-公开

    公开(公告)号：US20200063487A1

    公开(公告)日：2020-02-27

    申请号：US16547511

    申请日：2019-08-21

    Applicant: California Institute of Technology

    Inventor： Rebecca Saive ,  Harry A. Atwater ,  Thomas C.R. Russell ,  Michael D. Kelzenberg ,  Lucas J. Myers

    IPC: E06B3/67 ,  E06B9/24 ,  E06B3/66

    Abstract: Systems and methods for transparent materials implementing effectively transparent conductors in accordance with various embodiments of the invention are illustrated. One embodiment includes a window including a first transparent layer of transparent material having a first surface and a second surface, a first plurality of triangular conductors in optical communication with the first transparent layer of glass, wherein each of the first plurality of triangular conductors includes a base side that is parallel to the first surface of the first transparent layer of glass and wherein the first plurality of triangular conductors is configured to redirect a portion of incident light, wherein the portion of incident light travels through both the first surface and the second surface of the first transparent layer of glass.

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