Nematicons in planar cells subject to the optical Fréedericksz threshold | Zendy

Alessandro Alberucci | Zendy; Nina Kravets | Zendy; Armando Piccardi | Zendy; Oleksandr Buchnev | Zendy; Malgosia Kaczmarek | Zendy; Gaetano Assanto | Zendy

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Nematicons in planar cells subject to the optical Fréedericksz threshold

Author(s) -

Alessandro Alberucci,

Nina Kravets,

Armando Piccardi,

Oleksandr Buchnev,

Malgosia Kaczmarek,

Gaetano Assanto

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.030663

Subject(s) - bistability , liquid crystal , planar , optics , excitation , optical bistability , nonlinear optics , materials science , beam (structure) , photonics , nonlinear system , light beam , optoelectronics , physics , laser , computer graphics (images) , quantum mechanics , computer science

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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