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Photorefractive Photonics and Beyond

5–9 Sept 2022
Park Hotel Villa Fiorita
Europe/Rome timezone

Secretariat

Session

Photorefractive hybrid systems

8 Sept 2022, 09:00
Park Hotel Villa Fiorita

Park Hotel Villa Fiorita

Via Giovanni XXIII, 1 31050 Monastier di Treviso www.parkhotelvillafiorita.com

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  1. 69. Multiple Scenarios for Soft Matter Manipulation based on LiNbO3 Crystals
    Prof. Pietro Ferraro (Istituto di Scienze Applicate e Sistemi Intelligenti – CNR (Italy))
    08/09/2022, 09:00
    Invited Talk

    Manipulation of soft matter, especially at micro and nanoscale, is of primary importance in many fields of science and technology. Novel scenarios have been opened in recent years by using platforms based on LiNbO3 crystals. Interestingly, the multifaced intrinsic properties of such ferroelectric crystal has driven the development of novel concepts in exploiting pyroelectric or photorefractive...

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  2. 39. Light-shaped virtual electrodes on Fe:LiNbO3 to control confined droplets
    Dr Riccardo Zamboni (University of Muenster)
    08/09/2022, 09:35
    Materials
    Regular Talk

    Non-centrosymmetric ferroelectric materials serve as optimal substrates for generating local evanescent electric fields for droplet manipulation. Upon illumination, net space charge distributions are induced in the material, acting as virtual electrodes for dielectrophoretic control of droplets. Droplet manipulation using this method is promising due to the high flexibility offered by optical...

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  3. 28. Light and thermally-induced charge transfer phenomena at ferroelectric crystal surfaces
    Mr Carlos Sebastián-Vicente (Departamento de Física de Materiales, Universidad Autónoma de Madrid)
    08/09/2022, 10:00
    Materials
    Regular Talk

    Lately, evanescent electric fields generated by the bulk photovoltaic (PV) effect and the pyroelectric (PY) effect have attracted significant interest for multiple applications (particle/droplet manipulation and trapping, droplet dispensing, electrowetting, orientation of liquid crystals, etc). In this context the ferroelectric surface plays a key role, and we have discovered a new interaction...

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  4. 64. A polarization-induced Rayleigh instability: Ferroelectric liquid droplets exploding on ferroelectric solid surface
    Liana Lucchetti (Dipartimento SIMAU, Universita` Politecnica delle Marche)
    08/09/2022, 10:45
    Novel photorefractive and hybrid materials
    Invited Talk

    We present a study on the electrostatic behavior of ferroelectric liquid droplets exposed to the pyroelectric field of a lithium niobate ferroelectric crystal substrate. The ferroelectric liquid is a nematic liquid crystal in which almost complete polar ordering of the molecular dipoles generates an internal macroscopic polarization locally collinear to the mean molecular long axis. Upon...

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  5. 21. Photoinduced Displacement of Ferroelectric Nematic Liquid Crystal droplets on the Surface of Lithium Niobate
    Dr Virginie Coda (Université de Lorraine, Centrale Supélec, LMOPS), Dr Luka Cmok (Department of Complex Matter, J. Stefan Institute)
    08/09/2022, 11:20
    Materials
    Regular Talk

    The recent discovery of nematic liquid crystal molecules showing a ferroelectric order has marked a breakthrough in liquid crystal science. In nematic liquid crystals the rodlike molecules align parallel to each other. However, the conventional nematic phase is not polar, as in average half of the molecules have their dipoles pointing in each of the two opposite directions associated to the...

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