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Voltage-driven beam bistability in a reorientational uniaxial dielectric

Voltage-driven beam bistability in a reorientational uniaxial dielectric
Voltage-driven beam bistability in a reorientational uniaxial dielectric
We report on voltage controlled bistability of optical beams propagating in a nonlocal reorientational uniaxial dielectric, namely, nematic liquid crystals. In the nonlinear regime where spatial solitons can be generated, two stable states are accessible to a beam of given power in a finite interval of applied voltages, one state corresponding to linear diffraction and the other to self-confinement. We observe such a first-order transition and the associated hysteresis in a configuration when both the beam and the voltage reorientate the molecules beyond a threshold.
2378-0967
11302
Piccardi, A.
d6f1bc7d-56df-4fc3-81a3-274ea851dda3
Kravets, N.
74534f01-dc18-4f9e-b6c7-2b5f2e735559
Alberucci, A.
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Buchnev, O.
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Assanto, G.
82bad7ad-e3cb-4b22-b43b-b179f2451e49
Piccardi, A.
d6f1bc7d-56df-4fc3-81a3-274ea851dda3
Kravets, N.
74534f01-dc18-4f9e-b6c7-2b5f2e735559
Alberucci, A.
596b5409-8db7-4cd7-acb4-f91eeb124f80
Buchnev, O.
60cdb0d2-3388-47be-a066-61b3b396f69d
Assanto, G.
82bad7ad-e3cb-4b22-b43b-b179f2451e49

Piccardi, A., Kravets, N., Alberucci, A., Buchnev, O. and Assanto, G. (2016) Voltage-driven beam bistability in a reorientational uniaxial dielectric. APL Photonics, 1 (11302), 11302. (doi:10.1063/1.4945349).

Record type: Article

Abstract

We report on voltage controlled bistability of optical beams propagating in a nonlocal reorientational uniaxial dielectric, namely, nematic liquid crystals. In the nonlinear regime where spatial solitons can be generated, two stable states are accessible to a beam of given power in a finite interval of applied voltages, one state corresponding to linear diffraction and the other to self-confinement. We observe such a first-order transition and the associated hysteresis in a configuration when both the beam and the voltage reorientate the molecules beyond a threshold.

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Accepted/In Press date: 27 January 2016
Published date: 18 April 2016
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 397531
URI: http://eprints.soton.ac.uk/id/eprint/397531
ISSN: 2378-0967
PURE UUID: b83c1848-2976-442e-a6e3-a2c5d5fd1cfa

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Date deposited: 04 Jul 2016 09:02
Last modified: 15 Mar 2024 01:17

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Contributors

Author: A. Piccardi
Author: N. Kravets
Author: A. Alberucci
Author: O. Buchnev
Author: G. Assanto

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