Abstract

Here we report electric-field-induced, wavelength-tunable random lasing action in a liquid-crystal infiltrated disordered planar microcavity. With the increasing of external voltage from $0\mathrm{V}\text{to}30\mathrm{V}$, the emission wavelength of the random laser was continuously tuned from $648\mathrm{nm}\text{to}597\mathrm{nm}$. It was also tuned back to $648\mathrm{nm}$ again by reducing the voltage back to $0\mathrm{V}$.

© 2009 Optical Society of America

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