Browsing by Subject "Creation"
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Item Open Access Ferroelectric Based Photonic Crystal Cavity by Liquid Crystal Infiltration(Taylor & Francis, 2014) Karaomerlioglu, F.; Simsek S.; Mamedov, A. M.; Özbay, EkmelA novel type of two-dimensional photonic crystal is investigated for it optical properties as a core-shell-type ferroelectric nanorod infiltrated with nematic liquid crystals. Using the plane wave expansion method and finite-difference time-domain method, the photonic crystal structure, which is composed of a photonic crystal in a core-shell-type ferroelectric nanorod, is designed for the square lattice and the hexagonal lattice. It has been used 5CB as a photonic crystal core, and LiNbO3 as a ferroelectric material. The photonic crystal with a core-shell-type LiNbO3 nanorod infiltrated with nematic liquid crystals is compared with the photonic crystal with solid LiNbO3 rods and the photonic crystal with hollow LiNbO3 rods.Item Open Access Marketing for socialism: soviet cosmetics in the 1930s(Cambridge University Press, 2013-10-28) Kravets, O.; Sandıkçı, Ö.This article examines the marketing practices of the Soviet state trust for cosmetics, TeZhe, in the 1930s. Drawing on company records, industry reports, and popular press, we show that TeZhe used an array of marketing tactics, which were similar to those of the Western manufacturers. However, TeZhe's marketing was aligned with the state's economic and sociocultural initiatives and shaped by the ideological dictates of the Soviet system.Item Open Access Optical properties of metamaterial-based devices modulated by a liquid crystal(Springer Berlin Heidelberg, 2014) Karaomerlioglu, F.; Mamedov, A. M.; Özbay, EkmelDue to the fact that it is possible to manipulate light with photonic crystals (PCs), PCs hold a great potential for designing new optical devices. There has been an increase in research on tuning the optical properties of PCs to design devices. We presented a numerical study of optical properties of metamaterial-based devices by liquid crystal infiltration. The plane wave expansion method and finite-difference time-domain method for both TE and TM modes revealed optical properties in photonic crystal structures in an air background for a square lattice. E7 type has been used as a nematic liquid crystal and SrTiO3 as a ferroelectric material. We showed the possibility of the metamaterials for a two-dimensional photonic crystal cavity on a ferroelectric base infiltrated with a nematic liquid crystal.Item Restricted Yaratma çabası üzerine(1992) Gruda, Elvan