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Adaptive liquid iris for optical switch

机译：光学开关的自适应液体光圈

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摘要

An adaptive liquid iris for an optical switch based on electrowetting is demonstrated. The device consists of a clear conductive liquid and an opaque insulate oil. In the voltage-off state, the dome of the clear liquid touches the top substrate, and an iris-like opening is formed in its central area, and the aperture of the opening is at its largest. When a voltage is applied to the device, the shape of the conductive liquid is deformed due to the electrowetting effect. As a result, the diameter of the opening is reduced. Our results show that the aperture of the device can be tuned from ～6.4 mm to 0 as the applied voltage is changed from 0 to ～60 V. The device can obtain a high optical attenuation (～872:1). The response time was measured to be ～117 ms (shrinking time is ～25 ms, and relaxing time is ～92 ms) with turnaround speed of 55 mm/s. Our device has potential applications in light shutters, variable optical attenuators, adaptive irises, and displays.
机译：对基于电润湿的光开关的自适应液体虹膜进行了演示。该设备由透明的导电液体和不透明的绝缘油组成。在断电状态下，透明液体的圆顶接触顶部基板，并且在其中心区域形成虹膜状的开口，并且该开口的孔径最大。当向器件施加电压时，导电液体的形状由于电润湿效应而变形。结果，开口的直径减小。我们的结果表明，当施加的电压从0变为〜60 V时，设备的孔径可以从〜6.4 mm调整为0。该设备可以获得较高的光衰减（〜872：1）。测得的响应时间约为117毫秒（收缩时间约为25毫秒，松弛时间约为92毫秒），周转速度为55 mm / s。我们的设备在光闸，可变光衰减器，自适应光圈和显示器中具有潜在的应用。

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  • 来源
    《Optical engineering》 |2014年第4期|047105.1-047105.4|共4页
  • 作者

    Lei Li; Qiong-Hua Wang; Chao Liu; Ming-Huan Wang;

  • 作者单位

    Sichuan University, School of Electronics and Information Engineering, Chengdu 610065, China,Chinese Academy of Sciences, Institute of Optics and Electronics, State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, P. O. Box 350, Chengdu 610209, China;

    Sichuan University, School of Electronics and Information Engineering, Chengdu 610065, China;

    Sichuan University, School of Electronics and Information Engineering, Chengdu 610065, China;

    Sichuan University, School of Electronics and Information Engineering, Chengdu 610065, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    optical switch; iris; liquid;

    机译：光学开关虹膜液体;

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