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Magnetically tunable optical diffraction gratings based on a ferromagnetic liquid crystal. (CROSBI ID 684319)

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Rupp, R. A. ; Fleisch, M. ; Gao, S. ; Bošnjaković, Dejan ; Cmok, L. ; Medle-Rupnik, P. ; Mertelj, A. ; Lisjak, D. ; Zhang, X. ; Drevenšek-Olenik, I. Magnetically tunable optical diffraction gratings based on a ferromagnetic liquid crystal. // PR'19, Photorefractive Photonics and beyond Gérardmer, Francuska, 18.06.2019-21.06.2019

Podaci o odgovornosti

Rupp, R. A. ; Fleisch, M. ; Gao, S. ; Bošnjaković, Dejan ; Cmok, L. ; Medle-Rupnik, P. ; Mertelj, A. ; Lisjak, D. ; Zhang, X. ; Drevenšek-Olenik, I.

engleski

Magnetically tunable optical diffraction gratings based on a ferromagnetic liquid crystal.

Transmission optical diffraction gratings composed of periodic slices of a ferromagnetic liquid crystal and a conventional photoresist polymer are demonstrated. Dependence of diffraction efficiencies of various diffraction orders on an in-plane external magnetic field is investigated. It is shown that diffraction properties can be effectively tuned by magnetic fields as low as a few mT. The tuning mechanism is explained in the framework of a simple empirical model and also by numerical simulations based on the rigorous coupled wave analysis (RCWA). The obtained results provide a proof of principle of operation of magnetically tunable liquid crystalline diffractive optical elements applicable in contactless schemes for control of optical signals.

Liquid crystals ; micropatterned alignment ; magnetically tunable optical diffractive structures

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Podaci o prilogu

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Podaci o skupu

PR'19, Photorefractive Photonics and beyond

poster

18.06.2019-21.06.2019

Gérardmer, Francuska

Povezanost rada

Fizika