Detector device with photoconductive body

    公开(公告)号:US10830696B2

    公开(公告)日:2020-11-10

    申请号:US16200352

    申请日:2018-11-26

    Abstract: A solid-state device for photo detection, in general, of terahertz radiation is disclosed. One aspect is a detector device comprising a body having a photoconductive material, a first antenna element connected to a first portion of the body, and a second antenna element connected to a second portion of the body. The first antenna element and the second antenna element are arranged to induce an electric field in the body in response to an incident signal. Further, the device has a waveguide arranged to couple light into the photoconductive material via a coupling interface between the waveguide and the body, where the coupling interface faces away from the first portion and the second portion of the body and is closer to the first portion than to the second portion.

    Radiation coupler
    23.
    发明授权
    Radiation coupler 有权
    辐射耦合器

    公开(公告)号:US09482816B2

    公开(公告)日:2016-11-01

    申请号:US14560909

    申请日:2014-12-04

    Applicant: IMEC VZW

    Abstract: Semiconductor photonics devices for coupling radiation to a semiconductor waveguide are described. An example photonics device comprises a semiconductor-on-insulator substrate comprising a semiconductor substrate, a buried oxide layer positioned on top of the semiconductor substrate, and the semiconductor waveguide on top of the buried oxide layer to which radiation is to be coupled. The example device also comprises a grating coupler positioned on top of the buried oxide layer and configured for coupling incident radiation to the semiconductor waveguide. The semiconductor substrate has a recessed portion at the backside of the semiconductor substrate for receiving incident radiation to be coupled to the semiconductor waveguide via the backside of the semiconductor substrate and the grating coupler.

    Abstract translation: 描述了用于将辐射耦合到半导体波导的半导体光子器件。 一种示例性光子器件包括绝缘体上半导体衬底,其包括半导体衬底,位于半导体衬底顶部的掩埋氧化物层,以及辐射将与之耦合的掩埋氧化物层顶部的半导体波导。 示例性器件还包括位于掩埋氧化物层顶部并被配置用于将入射辐射耦合到半导体波导的光栅耦合器。 半导体衬底在半导体衬底的背面具有凹陷部分,用于接收经由半导体衬底和光栅耦合器的背面与半导体波导耦合的入射辐射。

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