Browsing by Subject "Optics"
Now showing items 1-20 of 45
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Conoscopy of chiral smectic liquid crystal cells
(2008)The conoscopic method for investigating the optical properties of a liquid crystal cell is studied with the aim of determining the effects of the approximations used in the calculation on the results. We confirm that the ... -
The Effect of Local Field Dispersion on the Spectral Characteristics of Nanosized Particles and their Composites
(Intech, 2011)Infrared (IR) spectroscopy of micro- and nanosized particles and their composites is currently one of the most important enabling technologies in the development of micro- and nanostructures and their application to ... -
Evaluation of high frequency vibrations using electronic speckle pattern interferometry
(2002)The available techniques for the study of high frequency vibration using electronic speckle pattern interferometry (ESPI) are briefly surveyed. We concentrate on two methods in particular. The first is a straightforward ... -
Fabrication Technology of Heterojunctions in the Lattice of a 2D Photonic Crystal Based on Macroporous Silicon
(2011)Design and fabrication technology of a microcavity structure based on a double heterojunction in macroporous silicon is suggested. The fabrication process of a strip of a 2D photonic crystal constituted by a finite number ... -
FTIR study of a chiral tilted SmA liquid crystalline phase
(EDP Sciences, 2002)In this paper we present the results of the polarized infrared spectroscopy as evidence for the existence of a chiral analogue of the SmA phase of the de Vries type. In this phase, the molecular director in the smectic ... -
Generation of a radially polarized light beam using internal conical diffraction
(2011)Using a combination of internal conical diffraction and Mach-Zehnder interferometry we have theoretically and experimentally demonstrated an efficient new technique for the conversion of a linearly polarized Gaussian laser ... -
Graphene oxide covalently functionalized with zinc phthalocyanine for broadband optical limiting
(Elsevier, 2011)A soluble graphene oxide (GO) covalently functionalized with zinc phthalocyanine (PcZn), GO-PcZn, was synthesized by an amidation reaction. The formation of an amido bond between PcZn and GO has been confirmed by x-ray ...