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Proceedings Paper

Fast and ultrafast all-optical control of light in nematic and smectic-A liquid crystals
Author(s): Igor Muševič; Maruša Vitek; Laura Cattaneo; Matteo Savoini; Alexey Kimel; Theo Rasing
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Paper Abstract

We review recent experiments on the fast and ultrafast all-optical control of light in bulk nematic and smectic-A liquid crystals. Ultrafast optical control at sub-picosecond time scalecan be achieved via the optical Kerr response of a nematic liquid crystal. We show that the refractive index changes are of the order of 10-4 in 5CB nematic liquid crystal and can be optically induced by applying 100 fs pulses of 4 mJ/cm2 fluence. We discuss stimulated emission depletion of fluorescence in a smectic-A liquid crystal and demonstrate nanosecond light control of fluorescent pulse shaping. Both methods could be applied to control light by light in future photonic devices based on liquid crystals.

Paper Details

Date Published: 7 March 2016
PDF: 9 pages
Proc. SPIE 9769, Emerging Liquid Crystal Technologies XI, 976902 (7 March 2016); doi: 10.1117/12.2209660
Show Author Affiliations
Igor Muševič, Jožef Stefan Institute (Slovenia)
Maruša Vitek, Jožef Stefan Institute (Slovenia)
Laura Cattaneo, Radboud Univ. Nijmegen (Netherlands)
Matteo Savoini, Radboud Univ. Nijmegen (Netherlands)
Alexey Kimel, Radboud Univ. Nijmegen (Netherlands)
Theo Rasing, Radboud Univ. Nijmegen (Netherlands)


Published in SPIE Proceedings Vol. 9769:
Emerging Liquid Crystal Technologies XI
Liang-Chy Chien; Dick J. Broer; Hirotsugu Kikuchi; Nelson V. Tabiryan, Editor(s)

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