KRAVETS, Nina; PODOLIAK, Nina; KACZMAREK, Malgosia; BRASSELET, Etienne

doi:10.1063/1.5082598

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KRAVETS, Nina
Laboratoire Ondes et Matière d'Aquitaine [LOMA]

PODOLIAK, Nina
School of Physics and Astronomy [Southampton]

KACZMAREK, Malgosia
School of Physics and Astronomy [Southampton]

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Applied Physics Letters. 2019, vol. 114, n° 6, p. 061101

American Institute of Physics

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Here, we report on the experimental demonstration that highly efficient self-induced spin-orbit optical vortex generation can be achieved by using standard liquid crystal materials and surface treatment agents. This is done by revisiting the recent attempt by Zolot’ko and coworkers to produce self-induced liquid crystal vortex plates using the dc electric field [I. A. Budagovsky, S. A. Shvetsov, and A. S. Zolot’ko, Mol. Cryst. Liq. Cryst. 637, 47 (2016)] that remains, so far, limited to moderate efficiencies. The phenomenon is the result of the self-back-action of light arising from the spontaneous creation of a liquid crystal topological defect. These results demonstrate photo-electric interface activation as a candidate towards the development of a self-adapted spinorbit photonic toolbox, thus enabling agile management of the orbital angular momentum of light.< Réduire

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Self-induced liquid crystal q-plate by photoelectric interface activation

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