Pyroliton: pyroelectric spatial soliton

J Safioui, F Devaux, M Chauvet - Optics express, 2009 - opg.optica.org
The concept of optical beam self-trap** in pyroelectric photorefractive medium is
presented. We show that the temperature controlled spontaneous polarisation of …

Immobilization of photorefractive solitons by charge anchoring on conductive walls

H Tari, A Bile, A Nabizada, E Fazio - Optics Letters, 2023 - opg.optica.org
Spatial solitons have shown great promise for various applications, but their limited stability
in terms of beam movement has been a significant hindrance. This limitation is especially …

Bending optical soliton-induced waveguide channels in a photorefractive LiNbO3 crystal

L Tsarukyan, A Badalyan, R Drampyan - Applied Physics B, 2022 - Springer
The bending bright spatial optical soliton generation in a photorefractive Fe-doped lithium
niobate (LN: Fe) crystal controlled by pyroelectric effect is demonstrated experimentally. A …

Nonlinear continuous orbital-angular-momentum modulation of linearly polarized Bessel beams

Y Chai, N Marsal, D Wolfersberger - Physical Review A, 2024 - APS
We numerically and experimentally demonstrate the nonlinear continuous modulation of
orbital angular momentum (OAM) of a linearly polarized high-order Bessel beam in a biased …

Surface-wave pyroelectric photorefractive solitons

J Safioui, E Fazio, F Devaux, M Chauvet - Optics letters, 2010 - opg.optica.org
Surface-wave solitons, induced by the pyroelectric effect, are formed at the interface
between a photorefractive ferroelectric medium and a linear medium. These optical solitons …

Two-photoactive-center model applied to photorefractive self-focusing in biased LiNbO

F Devaux, J Safioui, M Chauvet, R Passier - Physical Review A—Atomic …, 2010 - APS
We propose a time-dependent, three-dimensional numerical model where iron impurities
and polarons are both considered photoactive centers to explain beam self-trap** in …

Ptychographic analysis of the photorefractive effect in LiNbO3:Fe

C Bernert, R Hoppe, F Wittwer, T Woike… - Optics express, 2017 - opg.optica.org
We present light induced refractive index changes in iron doped lithium niobate detected
with a novel microscopy technique called ptychography. This method determines the …

Polarization and configuration dependence of beam self-focusing in photorefractive LiNbO3

J Safioui, M Chauvet, F Devaux, V Coda, F Pettazzi… - JOSA B, 2009 - opg.optica.org
We present numerical and experimental analyses showing the formation of (2+ 1) D spatial
photorefractive solitons at visible wavelengths in electrically biased lithium niobate crystals …

Pyroelectric-controlled bending of a self-trapped optical beam in a photorefractive iron doped lithium niobate crystal

L Tsarukyan, A Badalyan, F Devaux… - Journal of Nonlinear …, 2021 - World Scientific
We present the experimental demonstration of a self-trapped optical beam bending in a
photorefractive Fe-doped lithium niobate (LN: Fe) crystal controlled by the pyroelectric effect …

Regular optical patterns formation and pyroelectric controlled beam self-localization in a photorefractive LiNbO3: Fe crystal

LM Tsarukyan, AM Badalyan… - … and Modern Trends …, 2019 - spiedigitallibrary.org
We report for the first time a regular optical patterns formation in a laser beam propagating
through a Fe doped lithium niobate (LN: Fe) crystal. The process was controlled by …