Using an external low-frequency electric field applied to dye-doped nematic liquid crystals, we demonstrate that random lasing obtained by optical pumping can be steered in an angular direction by routing an all-optical waveguide able to collect the emitted light. By varying the applied voltage from 0 to 2 V, we reduce the walk-off and sweep the random laser guided beam over 7 degrees.
Assanto, G., Perumbilavil, S., Piccardi, A., Kauranen, M. (2018). Electro-optic steering of random laser emission in liquid crystals. PHOTONICS LETTERS OF POLAND, 10(4), 103-105 [10.4302/plp.v10i4.852].
Electro-optic steering of random laser emission in liquid crystals
Assanto G.
Conceptualization
;
2018-01-01
Abstract
Using an external low-frequency electric field applied to dye-doped nematic liquid crystals, we demonstrate that random lasing obtained by optical pumping can be steered in an angular direction by routing an all-optical waveguide able to collect the emitted light. By varying the applied voltage from 0 to 2 V, we reduce the walk-off and sweep the random laser guided beam over 7 degrees.File in questo prodotto:
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