title: Phase conjugation and slow light in dye-doped chiral nematics.
abstract: Optical phase conjugation and slow light are obtained in dye-doped chiral nematics via degenerate four-wave mixing. The creation of the light-induced dynamical grating is described and the amplitude of the phase-conjugate wave is shown to follow the changes of the input signal, hence providing efficient distortion correction. Associated to these capabilities, slowing down of light pulses is obtained thanks to the dispersive properties of the wave mixing occurring in the cholesteric liquid crystals, opening the way to applications in interferometry and imaging through highly scattering media.
authors.affiliation: Institut Non Linéaire de Nice (INLN), Université de Nice-Sophia Antipolis, Centre National de la Recherche Scientifique (CNRS), 1361 Route des Lucioles, Valbonne 06560, France.
authors.forename: D
authors.initials: D
authors.lastname: Wei
authors.forename: S
authors.initials: S
authors.lastname: Residori
authors.forename: U
authors.initials: U
authors.lastname: Bortolozzo