Signal processing by opto-optical interactions between self-localized and free propagating beams in liquid crystals

A Pasquazi; A Alberucci; M Peccianti; G Assanto

doi:10.1063/1.2158026

Signal processing by opto-optical interactions between self-localized and free propagating beams in liquid crystals

A Pasquazi, A Alberucci, M Peccianti, G Assanto

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

75 Citations (Scopus)

Abstract

The reorientational nonlinearity of nematic liquid crystals enables a self-localized spatial soliton and its waveguide to be deflected or destroyed by a control beam propagating across the cell. We demonstrate a simple all-optical readdressing scheme by exploiting the lens-like perturbation induced by an external beam on both a nematicon and a copolarized guided signal of different wavelength. Angular steering as large as 2.2 deg was obtained for control powers as low as 32 mW in the near infrared. (c) 2005 American Institute of Physics.

Original language	English
Article number	261104
Number of pages	3
Journal	Applied Physics Letters
Volume	87
Issue number	26
DOIs	https://doi.org/10.1063/1.2158026
Publication status	Published - 26 Dec 2005
Externally published	Yes
Publication type	A1 Journal article-refereed

Keywords

OPTICAL SPATIAL SOLITONS

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10.1063/1.2158026

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abstract = "The reorientational nonlinearity of nematic liquid crystals enables a self-localized spatial soliton and its waveguide to be deflected or destroyed by a control beam propagating across the cell. We demonstrate a simple all-optical readdressing scheme by exploiting the lens-like perturbation induced by an external beam on both a nematicon and a copolarized guided signal of different wavelength. Angular steering as large as 2.2 deg was obtained for control powers as low as 32 mW in the near infrared. (c) 2005 American Institute of Physics.",

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AU - Peccianti, M

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PY - 2005/12/26

Y1 - 2005/12/26

N2 - The reorientational nonlinearity of nematic liquid crystals enables a self-localized spatial soliton and its waveguide to be deflected or destroyed by a control beam propagating across the cell. We demonstrate a simple all-optical readdressing scheme by exploiting the lens-like perturbation induced by an external beam on both a nematicon and a copolarized guided signal of different wavelength. Angular steering as large as 2.2 deg was obtained for control powers as low as 32 mW in the near infrared. (c) 2005 American Institute of Physics.

AB - The reorientational nonlinearity of nematic liquid crystals enables a self-localized spatial soliton and its waveguide to be deflected or destroyed by a control beam propagating across the cell. We demonstrate a simple all-optical readdressing scheme by exploiting the lens-like perturbation induced by an external beam on both a nematicon and a copolarized guided signal of different wavelength. Angular steering as large as 2.2 deg was obtained for control powers as low as 32 mW in the near infrared. (c) 2005 American Institute of Physics.

KW - OPTICAL SPATIAL SOLITONS

U2 - 10.1063/1.2158026

DO - 10.1063/1.2158026

M3 - Article

SN - 0003-6951

VL - 87

JO - Applied Physics Letters

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ER -

Signal processing by opto-optical interactions between self-localized and free propagating beams in liquid crystals

Abstract

Keywords

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