Electrowetting optical switch with circular tunable aperture
作者: Sheng RongYannanqi LiLei Li
作者单位: 1Sichuan University
2Nankai University
刊名: Optical Engineering, 2018, Vol.57 (8), pp.087102-087102
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.OE.57.8.087102
关键词: Optical switchElectrowettingTunable aperture
原始语种摘要: We propose an optical switch with a circular tunable aperture based on electrowetting effect. The device is composed of two immiscible liquids. One liquid is dye-doped and conductive, while the other is transparent and insulating. The dye-doped water droplet is placed in the center of the bottom substrate, surrounded by transparent oil. In our experiment, in the voltage-off state, the light beam cannot pass through the aperture. When the voltage is applied, the black liquid expands in the radial direction because of the effect of electric field force and a circular aperture appears in the center of the device. Therefore, the device can achieve the function of light-on and light-off. Our device can provide a reasonable attenuation (∼582 ∶ 1). The aperture can be tuned from ∼0 to ∼5.8 mm....
全文获取路径: SPIE  (合作)

  • aperture 
  • tunable 可(协)调
  • optical 光学的
  • circular 循环的
  • switch 开关
  • device 装置
  • light 
  • transparent 透媚
  • doped 掺杂(了)的掺了添加剂的
  • substrate 基质