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The Nonlinear Dynamics of Optical
Systems group is part of the Physique des Lasers, Atomes et Molécules Lab in
the University of Lille
and is also a member of the CERLA and IRCICA research scientific consortia. We are involved in
the research and application of nonlinear dynamical systems ranging from
transverse pattern formation to temporal soliton instabilities. Our studies
are theoretical as well as experimental and concern both fundamental and
applied physics. |
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Research interests Keywords: Pattern formation, convective and absolute
instabilities, noise-sustained structures, dissipative solitons, localized
structures, noise effects, modulational instabilities, feedback, liquid
crystals, Kerr medium, fibre ring resonator,
extended systems, spatiotemporal dynamics, nonlinear optics. ▪
Dissipative
Solitons and Localized Structures in Extended Systems ▪
Rogue Waves in
Optics (temporal and spatial) ▪
Supercontinuum Generation ▪
Convective and Absolute
Instabilities ▪
Noise Effects in
Spatiotemporal Systems ▪
Pattern Formation
in Liquid Crystals with Optical Feedback and OPO ▪
Temporal
Instabilities in Fibre Ring Resonators |
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News Master and PhD proposals Master: Ondes scélerates
dans les fibres birefringentes Localisation de la lumière
par un cristal liquide soumis à une rétroaction optique retardée PhD (if funding): Génération et
Contrôle des Structures Optiques Localisées et Rares Generation and Control
of Optical Localized and Rare Structures Latest publication : Experimental evidence of dissipative spatial solitons in an optical
passive Kerr cavity V. Odent, M. Taki, and E. Louvergneaux, New J. Phys. 13, 113026 (2011)
Postdoc Position 2012 (assigned):
Within COLORS project Profile of the position. The candidate for
the Post-Doc position will have strong competences in experiments in the domain
of nonlinear optics and more especially in the dynamics of optical
morphogenesis. He will be aware of general problems of nonlinear physics such
as spatiotemporal complexity, pattern formation and competition, localized
states, etc. He will possess experience with the skills of nonlinear
dynamics, and numerical simulation computation knowledge will be appreciated.
The candidate will be autonomous with the management and evolution of the
setup. He will be involved in the optical stabilization of the cavity as well
as in the implementation for the motion control of the localized patterns via
the use of transverse spatial propagation induced by convective instability.
Human qualities of team integration will be highly appreciated. December 2010 : Coordination of the "COLORS international project" of French Research National Agency
(ANR) Coordinator ->
Eric Louvergneaux In this project, we develop control
methods and strategies for the optical localized structures arising in
nonlinear passive optical experiments such as shaping the patterns, switching
between different coexisting structures, displacing them transversally, or
else controlling rare intense events (such as optical rogue waves) that can
occur in spatiotemporal systems and that can have dramatic consequences. The
research will imply to a large extend fundamental studies, both theoretical
and experimental, on the nature of the structures under investigation and on
the definition of their distinctive features. It will imply as well
technological developments on the control of optical structures, such as
controlling their dynamics by using convectively traveling regimes, increase
or decrease the degree of interaction, shaping a single structure or clusters
of them, studying the effects of inherent noise on their dynamics,
controlling spatial extreme events. Therefore, we expect that the results of
the project will also have an impact on future applications in the field of
optical control and optical storage. As mentioned before, we plan to study
the statistics and properties of spatial localized intense events in
different experimental configurations such as cavity and feedback systems.
More specifically, we will explore their localization properties as well as
the influence of the convective nature of the system in their statistical
properties |
