Intersubband mid-infrared electroluminescent semiconductor devices
    1.
    发明申请
    Intersubband mid-infrared electroluminescent semiconductor devices 有权
    Intersubband中红外电致发光半导体器件

    公开(公告)号:US20050226296A1

    公开(公告)日:2005-10-13

    申请号:US11021095

    申请日:2004-12-21

    Abstract: A semiconductor laser and light emitting device is defined. The device comprises an electron injector and an active region adjacent to the electron injector. The active region includes at least one deep quantum well with barrier layers adjacent to either side of the quantum well or wells such that electrons injected from the electron injector into a high energy level of the quantum well relax to a lower energy level with the emission of a photon and are transmitted out to a region beyond the last barrier layer of the active region. The electron injector includes quantum well layers. The bottom of each deep quantum well or wells in the active region is lower in energy than the bottoms of the quantum well layers in the electron injector. The device may further comprise at least two stages wherein each stage contains an electron injector and an active region. The stages are separated by semiconductor layers that allow the transfer of electrons from the active region of one stage to the electron injector of the next stage.

    Abstract translation: 定义半导体激光器和发光器件。 该装置包括电子注入器和邻近电子注入器的有源区。 有源区域包括至少一个具有与量子阱或阱的任一侧相邻的势垒层的深量子阱,使得从电子注入器注入到量子阱的高能量级的电子放松到较低的能级, 并且被发射到超出有源区域的最后阻挡层的区域。 电子注入器包括量子阱层。 每个深量子阱的底部或有源区中的阱的能量低于电子注入器中的量子阱层的底部。 该装置还可以包括至少两个阶段,其中每个阶段包含电子注入器和有源区域。 这些级由允许电子从一级的有源区转移到下一级的电子注入器的半导体层分开。

    Ultra Broadband Multilayer Dielectric Beamsplitter Coating
    2.
    发明申请
    Ultra Broadband Multilayer Dielectric Beamsplitter Coating 审中-公开
    超宽带多层介质分束涂层

    公开(公告)号:US20140355121A1

    公开(公告)日:2014-12-04

    申请号:US13895062

    申请日:2013-05-15

    CPC classification number: G02B27/142 G01J2003/1213 G02B1/10 G02B27/1006

    Abstract: Coatings for optical devices, such as beamsplitters, are provided. The coatings include at least one bilayer of a layer of a material having an index of refraction n1 in contact with a layer of a material having an index of refraction n2 and an uppermost layer of a material having an index of refraction n3 over the bilayer, wherein n3>n2>n1. The bilayer(s) can be composed of BaF2 and KRS5. The uppermost layer can be composed of Ge. Certain coatings provide beamsplitters which exhibit highly efficient emission over broad spectral ranges.

    Abstract translation: 提供了用于诸如分光镜的光学装置的涂层。 涂层包括至少一层具有与折射率n2的材料层接触的折射率n1的材料层和在双层上具有折射率n3的材料的最上层, 其中n3> n2> n1。 双层可以由BaF2和KRS5组成。 最上层可由Ge组成。 某些涂层提供分光镜,其在宽光谱范围内表现出高效发射。

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