Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Serguei P. Palto"'
Publikováno v:
Crystals, Vol 14, Iss 10, p 891 (2024)
Orientation transitions in a cholesteric liquid crystal (CLC) layer with negative dielectric anisotropy, under the influence of a non-uniform spatially periodic electric field created using a planar system of interdigitated electrodes, were studied e
Externí odkaz:
https://doaj.org/article/50efeb08b9f24d57b38af067641d296c
Autor:
Serguei P. Palto, Artur R. Geivandov
Publikováno v:
Photonics, Vol 10, Iss 10, p 1089 (2023)
Numerical studies of the waveguide properties of liquid crystal layers bounded by substrates with indium tin oxide (ITO) electrodes using the finite difference time-domain (FDTD) method are carried out. On the basis of the experimental transmittance
Externí odkaz:
https://doaj.org/article/93383f71c4e5494399984ec043701258
Publikováno v:
Crystals, Vol 13, Iss 1, p 10 (2022)
The optical spectra of the cholesteric liquid crystal (CLC) layers under conditions of hybrid anchoring show a short-wave shift under a pulsed electric field. This behavior is anomalous because it is associated with a decrease in the pitch of the cho
Externí odkaz:
https://doaj.org/article/8da1f9b6cffe40e1957245550d46e92f
Precise local control of liquid crystal pretilt on polymer layers by focused ion beam nanopatterning
Autor:
Maxim V. Gorkunov, Irina V. Kasyanova, Vladimir V. Artemov, Alena V. Mamonova, Serguei P. Palto
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 10, Iss 1, Pp 1691-1697 (2019)
Background: The alignment of liquid crystals by surfaces is crucial for applications. It determines the director configuration in the bulk, its stability against defects and electro-optical switching scenarios. The conventional planar alignment of ru
Externí odkaz:
https://doaj.org/article/3e4fb5c7f46745eb91e30a6b4391253a
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 9, Iss 1, Pp 11-19 (2018)
The ongoing interest in fast liquid crystal (LC) modes stimulated by display technology and new applications has motivated us to study in detail the in-plane switching (IPS) vertically aligned (VA) mode. We have studied how the decrease of the period
Externí odkaz:
https://doaj.org/article/2d00ccb8d14543aa80f2cb2d5ca947c0
Autor:
Irina V. Kasyanova, Artur R. Geivandov, Vladimir V. Artemov, Maxim V. Gorkunov, Serguei P. Palto
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 9, Iss 1, Pp 42-47 (2018)
We have studied the alignment of a nematic liquid crystal (LC) material on aluminum subwavelength nanogratings as a function of the period, p, and the slit width to period ratio, w/p. A method, based on Fourier analysis of the transmittance spectra o
Externí odkaz:
https://doaj.org/article/971c3e45878840f3840d61b4ef95ba60
Autor:
Serguei P. Palto
Publikováno v:
Crystals, Vol 11, Iss 8, p 894 (2021)
For LCs with a non-zero flexoelectric coefficient difference (e1–e3) and low dielectric anisotropy, electric fields exceeding certain threshold values result in transitions from the homogeneous planarly aligned state to the spatially periodic one.
Externí odkaz:
https://doaj.org/article/9604cbedfd644759ba95cfa5ccd8be4c
Autor:
Serguei P. Palto
Publikováno v:
Crystals, Vol 9, Iss 9, p 469 (2019)
Waveguide optical properties of a cholesteric liquid crystal (CLC) layer with a deformed lying helix (DLH) have been studied by numerical simulations using the finite difference time domain method. The DLH structure, when the helix’s axis is orient
Externí odkaz:
https://doaj.org/article/6c37e7fe691f492f8416c41bb8429694
Publikováno v:
Liquid Crystals. 47:273-283
Electro-optical switching and the liquid crystal (LC) director distribution are studied in spatially periodic electric field for vertically aligned LC with negative dielectric anisotropy. T...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09813dad12867a9edc2553c69d53a7ea
https://doi.org/10.1080/02678292.2019.1643507
https://doi.org/10.1080/02678292.2019.1643507
Autor:
Maxim V. Gorkunov, Serguei P. Palto, I. V. Kasyanova, I. V. Simdyankin, Alexander A. Ezhov, Alena V Mamonova, Vladimir V. Artemov
Publikováno v:
ACS applied materialsinterfaces. 12(27)
Self-assembling of liquid-crystal metasurfaces on polymer layers patterned by a focused ion beam manifests itself in distinctly colored optical transmission, as light from certain spectral bands is efficiently diffracted by the periodic liquid crysta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98cc533852eede6e8a22bbc2b3de67fd
https://pubmed.ncbi.nlm.nih.gov/32510915
https://pubmed.ncbi.nlm.nih.gov/32510915