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    PHOTODETECTOR
    1.
    发明申请
    PHOTODETECTOR 审中-公开
    照相机

    公开(公告)号：US20150053922A1

    公开(公告)日：2015-02-26

    申请号：US14390842

    申请日：2013-05-10

    Applicant: HAMAMATSU PHOTONICS K.K.

    Inventor： Kazutoshi Nakajima ,  Masamichi Yamanishi ,  Kazuue Fujita ,  Minoru Niigaki ,  Toru Hirohata ,  Hiroyuki Yamashita ,  Wataru Akahori

    IPC: H01L31/0216 ,  H01L31/0232 ,  H01L31/0352

    CPC classification number: H01L31/02164 ,  B82Y20/00 ,  H01L31/02327 ,  H01L31/035209 ,  H01L31/035236 ,  H01L31/101 ,  H01L31/1035

    Abstract: A photodetector 1A comprises an optical element 10, having a structure including first regions and second regions periodically arranged with respect to the first regions along a plane perpendicular to a predetermined direction, for generating an electric field component in the predetermined direction when light is incident thereon along the predetermined direction; arid a semiconductor multilayer body 4 having a quantum cascade structure, arranged on the other side opposite from one side in the predetermined direction with respect to the optical element, for producing a current according to the electric field component in the predetermined direction generated by the optical element 10; while the quantum cascade structure includes an active region 4b having a first upper quantum level and a second upper quantum level lower than the first upper quantum level, and an injector region 4c for transporting an electron excited by the active region 4b.

    Abstract translation: 光电检测器1A包括光学元件10，其具有包括第一区域和第二区域的结构，所述第一区域和第二区域沿着垂直于预定方向的平面相对于第一区域周期性地布置，以在光入射时沿着预定方向产生电场分量 沿预定方向; 以及具有量子级联结构的半导体多层体4，其相对于光学元件配置在与预定方向的一侧相反的另一侧，用于根据由光学元件产生的预定方向上的电场分量产生电流 元素10; 而量子级联结构包括具有第一上量子级和低于第一上量子级的第二上量子级的有源区4b和用于传输由有源区4b激发的电子的注入区4c。

    PHOTODETECTOR
    2.
    发明申请
    PHOTODETECTOR 审中-公开
    照相机

    公开(公告)号：US20150097156A1

    公开(公告)日：2015-04-09

    申请号：US14390839

    申请日：2013-05-10

    Applicant: HAMAMATSU PHOTONICS K.K.

    Inventor： Kazutoshi Nakajima ,  Minoru Niigaki ,  Toru Hirohata ,  Hiroyuki Yamashita ,  Wataru Akahori ,  Kazuue Fujita ,  Kazunori Tanaka

    IPC: H01L31/0232 ,  H01L31/09

    CPC classification number: H01L31/02327 ,  B82Y20/00 ,  H01L31/035236 ,  H01L31/09 ,  H01L31/101 ,  H01L31/1035

    Abstract: A photodetector 1A comprises an optical element 10, having a structure including first regions and second regions periodically arranged with respect to the first regions along a plane perpendicular to a predetermined direction, for generating an electric field component in the predetermined direction when light is incident thereon along the predetermined direction; and a semiconductor multilayer body 4 having a quantum cascade structure, arranged on the other side opposite from one side in the predetermined direction with respect to the optical element, for producing a current according to the electric field component in the predetermined direction generated by the optical element 10; while the quantum cascade structure includes an active region 4b for exciting an electron and an injector region 4c for transporting the electron, the active region 4b being formed on the outermost surface on the one side of the injector region 4c in the quantum cascade structure.

    Abstract translation: 光电检测器1A包括光学元件10，其具有包括第一区域和第二区域的结构，所述第一区域和第二区域沿着垂直于预定方向的平面相对于第一区域周期性地布置，以在光入射时沿着预定方向产生电场分量 沿预定方向; 以及具有量子级联结构的半导体层叠体4，其相对于光学元件配置在与预定方向的一侧相反的另一侧，用于根据由光学器件产生的预定方向上的电场分量产生电流 元素10; 而量子级联结构包括用于激发电子的有源区域4b和用于传输电子的注入区域4c，有源区域4b形成在量子级联结构中的注入区域4c一侧的最外表面上。

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