Theoretical study of a tunable optical device on the base of magnetoactive cholesteric liquid crystals

AH Gevorgyan, NA Vanyushkin, IM Efimov… - Optical Materials, 2024 - Elsevier
We investigated the light reflection from half-space of cholesteric liquid crystal (CLC) being
in external static magnetic field directed along the helix axis at normal light incidence. In this …

Strong light absorption and absorption absence in photonic crystals with helical structure in an external static magnetic field

AH Gevorgyan, NA Vanyushkin, IM Efimov… - JOSA B, 2023 - opg.optica.org
In this paper, we investigate the light absorption in helically structured photonic crystals
(HSPCs) in an external static magnetic field in the case when the parameter of magneto …

Unusually strong, tunable, and nonreciprocal light trapping and absorption in helically structured magnetoactive media

AH Gevorgyan - Journal of Applied Physics, 2022 - pubs.aip.org
We investigated the absorption properties of photonic structures with both large optical
activity and magneto-optical activity parameters. The photonic structure is a periodic helical …

Dirac points, new photonic band gaps, and effect of magnetically induced transparency in dichroic cholesteric liquid crystals with wavelength-dependent magneto …

AH Gevorgyan - Physical Review E, 2023 - APS
We investigated the properties of cholesteric liquid crystals (CLCs) being in an external
static magnetic field directed along the helix axis. We considered a dichroic CLC, that is …

Nonreciprocal absorption properties of a magneto-optical microstructure with suppressed photothermal effects

J Han, A Zhu, H Wang - Optics Communications, 2023 - Elsevier
In this work, a magneto-optical microstructure of titanium (Ti)-doped ellipsoidal particles is
designed, and an improved equivalent medium theory (EMT) combined with thin-film optics …

Designing of efficient optical waveguide using magnetic photonic crystal for communication application

A Rath, G Palai - Journal of Optics, 2024 - Springer
In the present research, a one-dimensional photonic crystal waveguide is designed and
realized by using a magnetic photonic crystal structure and transfer matrix method. The …

Linear and circular dichroisms of cholesteric liquid crystals in a longitudinal external magnetic field

AH Gevorgyan, NA Vanyushkin, IM Efimov… - Liquid …, 2023 - Taylor & Francis
We investigated the properties of linear and circular dichroisms of cholesteric liquid crystal
layer in external static magnetic field directed along helix axis. We showed that when the …

[PDF][PDF] Study of asymmetric defect on transmission and Faraday rotation of one-dimensional magneto-optic phonic crystal

A Gharaati, NA Tolgari - Quarterly Journal of Optoelectronic, 2022 - jphys.journals.pnu.ac.ir
In this article, the effect of creating a central symmetric defect on the Faraday rotation and
transmission in a one-dimensional magnetooptic photonic crystal consisting of two dielectric …

بررسی اثر نقص متقارن مرکزی درعبور و چرخش فاراده در بلور فوتونی مگنتو اپتکی یک بعدی

قرائتی, عبدالرسول, عباسی - فصلنامه علمی اپتوالکترونیک, 2022‎ - jphys.journals.pnu.ac.ir
در این مقاله اثر ایجاد نقص متقارن مرکزی بر روی میزان عبور و چرخش فاراده در بلور فوتونی
مگنتو اپتیک یک بعدی متشکل از دو ماده دی‌الکتریک و یک ماده مگنتو اپتیک مورد مطالعه قرار …