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Nematicons in planar cells subject to the optical Fréedericksz threshold

Nematicons in planar cells subject to the optical Fréedericksz threshold
Nematicons in planar cells subject to the optical Fréedericksz threshold
We investigate, both theoretically and experimentally, self-trapping of light beams in nematic liquid crystals arranged so as to exhibit the optical Fréedericksz transition in planar cells. The resulting threshold in the nonlinear reorientational response supports a bistable behavior between diffracting and self-localized beam states, leading to the appearance of a hysteretic loop versus input excitation. Our results confirm the role of nematic liquid crystals in the study of non-perturbative nonlinear photonics.
1094-4087
30663-30668
Alberucci, Alessandro
6724255e-f380-4a32-af24-911323cb7e98
Kravets, Nina
d8a09747-9b2f-4935-92de-2f669609e5dd
Piccardi, Armando
745f16e1-faaa-4405-b99d-a1ecbfd9e582
Buchnev, Oleksandr
60cdb0d2-3388-47be-a066-61b3b396f69d
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
Assanto, Gaetano
c89823fa-c863-4ff3-aea0-915fa5852df2
Alberucci, Alessandro
6724255e-f380-4a32-af24-911323cb7e98
Kravets, Nina
d8a09747-9b2f-4935-92de-2f669609e5dd
Piccardi, Armando
745f16e1-faaa-4405-b99d-a1ecbfd9e582
Buchnev, Oleksandr
60cdb0d2-3388-47be-a066-61b3b396f69d
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
Assanto, Gaetano
c89823fa-c863-4ff3-aea0-915fa5852df2

Alberucci, Alessandro, Kravets, Nina, Piccardi, Armando, Buchnev, Oleksandr, Kaczmarek, Malgosia and Assanto, Gaetano (2014) Nematicons in planar cells subject to the optical Fréedericksz threshold. Optics Express, 22 (25), 30663-30668. (doi:10.1364/OE.22.030663). (PMID:25607014)

Record type: Article

Abstract

We investigate, both theoretically and experimentally, self-trapping of light beams in nematic liquid crystals arranged so as to exhibit the optical Fréedericksz transition in planar cells. The resulting threshold in the nonlinear reorientational response supports a bistable behavior between diffracting and self-localized beam states, leading to the appearance of a hysteretic loop versus input excitation. Our results confirm the role of nematic liquid crystals in the study of non-perturbative nonlinear photonics.

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More information

Accepted/In Press date: 6 November 2014
e-pub ahead of print date: 3 December 2014
Published date: 15 December 2014
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 377317
URI: https://eprints.soton.ac.uk/id/eprint/377317
ISSN: 1094-4087
PURE UUID: e9aea52f-83a9-43bc-8e23-128b75117a3f

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Date deposited: 20 May 2015 16:31
Last modified: 28 Nov 2018 17:30

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