Rewritable nonvolatile polar optical memory driven by the photon spin in chiral liquid crystals

Nicolas Bruni; Charles Loussert; Mushegh Rafayelyan; Tetiana Orlova; Delphine Coursault; Etienne Brasselet

doi:10.1117/12.3022443

18 June 2024 Rewritable nonvolatile polar optical memory driven by the photon spin in chiral liquid crystals

Nicolas Bruni, Charles Loussert, Mushegh Rafayelyan, Tetiana Orlova, Delphine Coursault, Etienne Brasselet

Proceedings Volume PC13016, Liquid Crystals Optics and Photonic Devices; PC130160I (2024) https://doi.org/10.1117/12.3022443
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

We experimentally report on nonvolatile and rewritable binary optical memory where the photon spin state controls the polarity of optically recorded localized orientational distortions in liquid crystals, which behave as elastic quasiparticles having long-term storage capabilities. The memory effect is made possible by the chiral nature of the liquid crystal mesophase, while the supramolecular polarity of the recorded ‘spinbits’ results from the chiral light-matter interaction involving spin-angular momentum transfer from light to matter.

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Citation Download Citation

Nicolas Bruni, Charles Loussert, Mushegh Rafayelyan, Tetiana Orlova, Delphine Coursault, and Etienne Brasselet "Rewritable nonvolatile polar optical memory driven by the photon spin in chiral liquid crystals", Proc. SPIE PC13016, Liquid Crystals Optics and Photonic Devices, PC130160I (18 June 2024); https://doi.org/10.1117/12.3022443

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