Optical switching device
    1.
    发明授权
    Optical switching device 失效
    光开关器件

    公开(公告)号:US06101298A

    公开(公告)日:2000-08-08

    申请号:US37892

    申请日:1998-03-10

    摘要: A description is given of an optical switching device (1) comprising a transparent substrate (3), a switching film (5) of a hydride compound of a trivalent transition or rare earth metal having a thickness of 300 nm, and a palladium capping layer (7) having a thickness of 30 nm. The capping layer is in contact with hydrogen. An electric current through the switching film (5) can be switched on and off between the terminals (9, 11). Joule heating of the switching film (5) causes a rapid transition from the transparent trihydride state to the absorbing dihydride state. By switching off the current, the switching film (5) cools down, which results in the formation of the absorbing dihydride state. The conversion between both states is reversible and can be repeated many times. The device can be used for controlling light beams, or it can be used in or for a display. Optionally, cooling of the switching film (5) is obtained with a Peltier element in thermal contact with the switching film (5).

    摘要翻译: 说明了包括透明基板(3),厚度为300nm的三价过渡金属或稀土金属的氢化物化合物的开关膜(5)和钯封盖层(1)的光开关装置(1) (7),厚度为30nm。 封盖层与氢接触。 可以在端子(9,11)之间接通和断开通过开关薄膜(5)的电流。 开关膜(5)的焦耳加热导致从透明三氢化物状态到吸收二氢化态的快速转变。 通过切断电流,开关膜(5)冷却,这导致形成吸收二氢化物状态。 两种状态之间的转换是可逆的,可重复多次。 该装置可用于控制光束,或者可以用于显示器或用于显示器。 可选地,通过与开关膜(5)热接触的珀耳贴元件来获得开关薄膜(5)的冷却。