Observation of Beam Self-Induced Transition from Positive to Negative Optical Refraction in Nematic Liquid Crystals

Nina Kravets; Armando Piccardi; Alessandro Alberucci; Oleksandr Buchnev; Gaetano Assanto

doi:10.1080/15421406.2015.1088761

Observation of Beam Self-Induced Transition from Positive to Negative Optical Refraction in Nematic Liquid Crystals

Nina Kravets
, Armando Piccardi
, Alessandro Alberucci
, Oleksandr Buchnev
, Gaetano Assanto

Research output: Contribution to journal › Article › Scientific › peer-review

Abstract

We demonstrate that light refraction at a straight interface between an isotropic dielectric and a nematic liquid crystal can change from positive to negative depending on power. The phenomenon relies on the reorientational response and the all-optical rotation of the optic axis, causing in turn variations in walk-off and beam self-steering.

Original language	English
Pages (from-to)	28-34
Number of pages	7
Journal	Molecular Crystals and Liquid Crystals
Volume	619
Issue number	1
DOIs	https://doi.org/10.1080/15421406.2015.1088761
Publication status	Published - 22 Sept 2015
Publication type	A1 Journal article-refereed

Keywords

nematic liquid crystals
negative refraction
optical solitons
nematicons
self-steering
signal routing
INDEX
METAMATERIALS
REFLECTION
LIGHT

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10.1080/15421406.2015.1088761

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abstract = "We demonstrate that light refraction at a straight interface between an isotropic dielectric and a nematic liquid crystal can change from positive to negative depending on power. The phenomenon relies on the reorientational response and the all-optical rotation of the optic axis, causing in turn variations in walk-off and beam self-steering.",

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author = "Nina Kravets and Armando Piccardi and Alessandro Alberucci and Oleksandr Buchnev and Gaetano Assanto",

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AU - Kravets, Nina

AU - Piccardi, Armando

AU - Alberucci, Alessandro

AU - Buchnev, Oleksandr

AU - Assanto, Gaetano

PY - 2015/9/22

Y1 - 2015/9/22

N2 - We demonstrate that light refraction at a straight interface between an isotropic dielectric and a nematic liquid crystal can change from positive to negative depending on power. The phenomenon relies on the reorientational response and the all-optical rotation of the optic axis, causing in turn variations in walk-off and beam self-steering.

AB - We demonstrate that light refraction at a straight interface between an isotropic dielectric and a nematic liquid crystal can change from positive to negative depending on power. The phenomenon relies on the reorientational response and the all-optical rotation of the optic axis, causing in turn variations in walk-off and beam self-steering.

KW - nematic liquid crystals

KW - negative refraction

KW - optical solitons

KW - nematicons

KW - self-steering

KW - signal routing

KW - INDEX

KW - METAMATERIALS

KW - REFLECTION

KW - LIGHT

U2 - 10.1080/15421406.2015.1088761

DO - 10.1080/15421406.2015.1088761

M3 - Article

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JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

IS - 1

ER -

Observation of Beam Self-Induced Transition from Positive to Negative Optical Refraction in Nematic Liquid Crystals

Abstract

Keywords

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