Nonlinear optical memory effect

A. Fleming; C. Conti; Tom Vettenburg; Andrea Di Falco

doi:10.1364/OL.44.004841

Nonlinear optical memory effect

A. Fleming, C. Conti, Tom Vettenburg, Andrea Di Falco (Lead / Corresponding author)

Physics

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8 Citations (Scopus)

207 Downloads (Pure)

Abstract

Light propagating through random media produces characteristic speckle patterns, directly related to the large multitude of scattering events. These complex dynamics remarkably display robustness to perturbation of the incoming light parameters, maintaining correlation in the scattered wavefront. This behavior is known as the optical memory effect. Here we unveil the properties of the nonlinear optical memory effect, which occurs when an optothermal nonlinearity perturbs the random material. The effect is characterized through a series of pump and probe experiments in silica aerogel, in the visible range. This additional degree of freedom further generalizes the memory effect, opening the road to applications based on the nonlinear response of random media.

Original language	English
Pages (from-to)	4841-4844
Number of pages	4
Journal	Optics Letters
Volume	44
Issue number	19
Early online date	25 Sept 2019
DOIs	https://doi.org/10.1364/OL.44.004841
Publication status	Published - 1 Oct 2019

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OL.44.004841

Author Accepted Manuscript
© 2019 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.
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Cite this

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abstract = "Light propagating through random media produces characteristic speckle patterns, directly related to the large multitude of scattering events. These complex dynamics remarkably display robustness to perturbation of the incoming light parameters, maintaining correlation in the scattered wavefront. This behavior is known as the optical memory effect. Here we unveil the properties of the nonlinear optical memory effect, which occurs when an optothermal nonlinearity perturbs the random material. The effect is characterized through a series of pump and probe experiments in silica aerogel, in the visible range. This additional degree of freedom further generalizes the memory effect, opening the road to applications based on the nonlinear response of random media.",

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note = "Funding: A.D.F. and A.F. thank EPSRC (EP/M508214/1). C.C. acknowledges QuantERA ERA-NET Co-fund 731473 (Project QUOMPLEX). A.D.F. is supported by the European Research Council (ERC) under the European Union Horizon 2020 research and innovation programme (Grant Agreement No. 819346).",

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AU - Fleming, A.

AU - Conti, C.

AU - Vettenburg, Tom

AU - Di Falco, Andrea

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N2 - Light propagating through random media produces characteristic speckle patterns, directly related to the large multitude of scattering events. These complex dynamics remarkably display robustness to perturbation of the incoming light parameters, maintaining correlation in the scattered wavefront. This behavior is known as the optical memory effect. Here we unveil the properties of the nonlinear optical memory effect, which occurs when an optothermal nonlinearity perturbs the random material. The effect is characterized through a series of pump and probe experiments in silica aerogel, in the visible range. This additional degree of freedom further generalizes the memory effect, opening the road to applications based on the nonlinear response of random media.

AB - Light propagating through random media produces characteristic speckle patterns, directly related to the large multitude of scattering events. These complex dynamics remarkably display robustness to perturbation of the incoming light parameters, maintaining correlation in the scattered wavefront. This behavior is known as the optical memory effect. Here we unveil the properties of the nonlinear optical memory effect, which occurs when an optothermal nonlinearity perturbs the random material. The effect is characterized through a series of pump and probe experiments in silica aerogel, in the visible range. This additional degree of freedom further generalizes the memory effect, opening the road to applications based on the nonlinear response of random media.

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Nonlinear optical memory effect

Abstract

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