Focusing-to-defocusing crossover in nonlinear periodic structures

Francis H. Bennet; Inés A. Amuli; Andrey A. Sukhorukov; Wieslaw Krolikowski; Dragomir N. Neshev; Yuri S. Kivshar

doi:10.1364/OL.35.003213

Focusing-to-defocusing crossover in nonlinear periodic structures

Francis H. Bennet, Inés A. Amuli, Andrey A. Sukhorukov, Wieslaw Krolikowski, Dragomir N. Neshev, Yuri S. Kivshar

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3 Citations (Scopus)

Abstract

We demonstrate experimentally a transition from nonlinear beam trapping to defocusing in a two-dimensional periodic photonic structures by varying the modulation depth of the lattice. The observed effect illustrates the fundamental crossover from discrete to cw transport mechanisms. At the threshold modulation, the output beam is highly sensitive to refractive index and power variations, which can be potentially applied for high-sensitivity refractive index or temperature sensing.

Original language	English
Pages (from-to)	3213-3215
Number of pages	3
Journal	Optics Letters
Volume	35
Issue number	19
DOIs	https://doi.org/10.1364/OL.35.003213
Publication status	Published - 1 Oct 2010

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title = "Focusing-to-defocusing crossover in nonlinear periodic structures",

abstract = "We demonstrate experimentally a transition from nonlinear beam trapping to defocusing in a two-dimensional periodic photonic structures by varying the modulation depth of the lattice. The observed effect illustrates the fundamental crossover from discrete to cw transport mechanisms. At the threshold modulation, the output beam is highly sensitive to refractive index and power variations, which can be potentially applied for high-sensitivity refractive index or temperature sensing.",

author = "Bennet, {Francis H.} and Amuli, {In{\'e}s A.} and Sukhorukov, {Andrey A.} and Wieslaw Krolikowski and Neshev, {Dragomir N.} and Kivshar, {Yuri S.}",

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AU - Bennet, Francis H.

AU - Amuli, Inés A.

AU - Sukhorukov, Andrey A.

AU - Krolikowski, Wieslaw

AU - Neshev, Dragomir N.

AU - Kivshar, Yuri S.

PY - 2010/10/1

Y1 - 2010/10/1

N2 - We demonstrate experimentally a transition from nonlinear beam trapping to defocusing in a two-dimensional periodic photonic structures by varying the modulation depth of the lattice. The observed effect illustrates the fundamental crossover from discrete to cw transport mechanisms. At the threshold modulation, the output beam is highly sensitive to refractive index and power variations, which can be potentially applied for high-sensitivity refractive index or temperature sensing.

AB - We demonstrate experimentally a transition from nonlinear beam trapping to defocusing in a two-dimensional periodic photonic structures by varying the modulation depth of the lattice. The observed effect illustrates the fundamental crossover from discrete to cw transport mechanisms. At the threshold modulation, the output beam is highly sensitive to refractive index and power variations, which can be potentially applied for high-sensitivity refractive index or temperature sensing.

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DO - 10.1364/OL.35.003213

M3 - Article

SN - 0146-9592

VL - 35

SP - 3213

EP - 3215

JO - Optics Letters

JF - Optics Letters

IS - 19

ER -

Focusing-to-defocusing crossover in nonlinear periodic structures

Abstract

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