Zobrazeno 1 - 10
of 93
pro vyhledávání: '"Liana Lucchetti"'
Autor:
Liana Lucchetti, Giovanni Nava
Publikováno v:
Giant, Vol 19, Iss , Pp 100311- (2024)
Cholesteric liquid crystals, also known as chiral nematics, possess a right-angle helicoidal structure with pitch in the submicrometer and micrometer range. Although the possibility of getting optical reorientation in this kind of materials has been
Externí odkaz:
https://doaj.org/article/08bf5c29d921455490ef39739d9bfb79
Publikováno v:
Crystals, Vol 14, Iss 5, p 425 (2024)
Recent experiments devoted to characterizing the behavior of sessile ferroelectric liquid droplets on ferroelectric solid substrates have shown the existence of a droplet electromechanical Rayleigh-like instability. The instability is induced by the
Externí odkaz:
https://doaj.org/article/4785792018084757838ed78e08dc3c02
Autor:
Filippo Marinello, Davide Ferraro, Alessio Meggiolaro, Sebastian Cremaschini, Annamaria Zaltron, Matteo Pierno, Giampaolo Mistura, Giuliano Zanchetta, Liana Lucchetti
Publikováno v:
Crystals, Vol 14, Iss 1, p 1 (2023)
In this work, we report on measurements of the contact angle of sessile droplets of aqueous solutions of a chromonic liquid crystal at different temperatures and concentrations and on different hydrophobic surfaces, and we show that the wettability o
Externí odkaz:
https://doaj.org/article/2deba3f65499402384ff889691e094a6
Publikováno v:
Crystals, Vol 13, Iss 7, p 1104 (2023)
We present a theoretical model of a cylindrical tunable liquid crystal lens based on the modulation of anchoring energy. The latter can be easily obtained using photoalignment techniques. The liquid crystal cell we propose exhibits strong anchoring a
Externí odkaz:
https://doaj.org/article/27d327beb4244929adb315797d297d62
Publikováno v:
Crystals, Vol 13, Iss 5, p 750 (2023)
We analyzed the behavior of sessile ferroelectric liquid droplets in the vicinity of a pyroelectrically charged ferroelectric crystal, an experimental configuration that allows testing the recently observed coupling between the polarizations of the f
Externí odkaz:
https://doaj.org/article/f2ce904c8a6f4e028b9e4e83472b9765
Autor:
Fabrizio Ciciulla, Annamaria Zaltron, Riccardo Zamboni, Cinzia Sada, Francesco Simoni, Victor Yu. Reshetnyak, Liana Lucchetti
Publikováno v:
Crystals, Vol 11, Iss 8, p 908 (2021)
In this study, we present a new configuration of the recently reported optofluidic platform exploiting liquid crystals reorientation in lithium niobate channels. In order to avoid the threshold behaviour observed in the optical control of the device,
Externí odkaz:
https://doaj.org/article/e7151f0585c946b29192c919f3f97219
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
Abstract Throughout the whole history of liquid crystals science, the balancing of intrinsic elasticity with coupling to external forces has been the key strategy for most application and investigation. While the coupling of the optical field to the
Externí odkaz:
https://doaj.org/article/1cb50ea554d145c0b280a9eb2c2922e4
Publikováno v:
Advanced Materials.
Explosive electrostatic instability of ferroelectric liquid droplets on ferroelectric solid surfaces
Autor:
Raouf Barboza, Stefano Marni, Fabrizio Ciciulla, Farooq Ali Mir, Giovanni Nava, Federico Caimi, Annamaria Zaltron, Noel A. Clark, Tommaso Bellini, Liana Lucchetti
Publikováno v:
Proceedings of the National Academy of Sciences. 119
We investigated 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 or
Autor:
Oleg D. Lavrentovich, Fabrizio Ciciulla, Giovanni Nava, Liana Lucchetti, Francesco Simoni, Olena S. Iadlovska
Publikováno v:
Liquid Crystals. 48:1534-1543
Heliconical cholesteric liquid crystals are a recently proposed novel class of liquid crystalline materials in which the chiral pitch can be tuned by an external electric field acting parallel to t...