Pattern formation and direct measurement of the spatial resolution in a photorefractive liquid crystal light valve

Creators: Bortolozzo, Umberto; Residori, Stefania; Petrosyan, Artyom; Huignard, J.-P.

Others:: Institut Non Linéaire de Nice Sophia-Antipolis (INLN) ; Université Nice Sophia Antipolis (1965 - 2019) (UNS) ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS); Istituto Nazionale di Ottica Applicata (INOA) ; Consiglio Nazionale delle Ricerche (CNR); Laboratoire de Physique de l'ENS Lyon (Phys-ENS) ; École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL) ; Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS); Thales Research and Technology [Palaiseau] ; THALES [France]

Description

In a photorefractive liquid crystal light valve, acting as a Kerr-like nonlinear optical medium, we show the appearance of optical patterns induced by a single mirror feedback. The spatial wavelength of the patterns scales with the distance between the mirror and the valve and the contrast of the patterns decreases for decreasing this distance. We use these properties to setup a new optical scheme for the measurement of the spatial resolution of the nonlinear device.

Abstract

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Pattern formation and direct measurement of the spatial resolution in a photorefractive liquid crystal light valve

Description

Abstract

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