Liquid-based infrared optical switch
نویسندگان
چکیده
We report an infrared (IR) optical switch using a position-shifting glycerol droplet. The droplet is surrounded by density-matched oil. In the voltage-on state, the droplet shifts in one direction. Upon removing the voltage, the droplet returns to its original position with the aid of interfacial tensions. Due to the strong absorption of glycerol at 1.55 lm, our IR optical switch shows 95:1 contrast ratio and 200 ms response time. Such a device is promising for fiber optical switch and various IR optical attenuators. VC 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4738995]
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