Browsing by Author "staya"
Now showing items 1-20 of 87
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A Fourier ellipsometer using rotating polarizer and analyzer at a speed ratio 1: 1
(Hindawi, 2010)We propose theoretically a spectroscopic ellipsometer in which the polarizer and the analyzer are rotating synchronously in the same direction with the same angular speed. -
A NEW TECHNIQUE FOR ONE-DIMENSIONAL SCATTERING FROM DIRAC COMB
(الجامعة الإسلامية - غزة, 2003)Using the well-known matrix formulation of the reflection and transmission of electromagnetic waves by a stratified planner structure, we show that the reflection and transmission coefficients of any number of isotropic ... -
A polynomial approach for reflection, transmission, and ellipsometric parameters by isotropic stratified media
(2010)A polynomial approach for the calculation of the reflectance, the transmittance, and the ellipsometric parameters of a stratified isotropic planar structure is presented. We show that these parameters can be written in a ... -
A reverse symmetry optical waveguide sensor using a plasma substrate
(IOP Publishing, 2011)This paper presents an extensive theoretical treatment of an optical waveguide sensor consisting of thin dielectric film surrounded by an aqueous cladding and an ideal nonabsorbing plasma substrate. We consider the case ... -
A spectroscopic ellipsometer using rotating polarizer and analyzer at a speed ratio 1: 1 and a compensator
(Springer US, 2014)Ellipsometers have been widely used in thin film characterization. They have shown a high degree of accuracy. We here propose theoretically a rotating polarizer and analyzer ellipsometer at a speed ratio 1:1 with a fixed ... -
Aging of Oxygen-Treated Trimethylsilane Plasma-Polymerized Films Using Spectroscopic Ellipsometry
(Hindawi Publishing Corporation, 2011)Oxygen-treated trimethylsilane (TMS) plasma-polymerized films are investigated using rotating polarizer and analyzer ellipsometer. Aging process and composition of the samples are studied. Coordinated X-ray photoelectron ... -
Aldimine derivatives as photosensitizers for dye-sensitized solar cells
(2014-01-17)Five aldimine derivatives were prepared by condensation of the appropriate amine with salicylaldehyde (m1-m4) and 4-aminobenzoic acid with 2-thiophene carboxaldehyde (m5). A molar ratio of 1: 1 was used and the mixture was ... -
An extensive theoretical analysis of the 1: 2 ratio rotating polarizer–analyzer Fourier ellipsometer
(IOP Publishing, 2011)A full description of a scanning ellipsometer that incorporates the rotation of two polarizing elements simultaneously is presented in detail in this paper. Both the polarizer and the analyzer are rotating synchronously ... -
An improvement of scanning ellipsometer by rotating a polarizer and an analyzer at a speed ratio of 1: 3
(Taylor & Francis Group, 2011)We propose theoretically an improved spectroscopic ellipsometer to study the optical properties of solids. In this system, the polarizer and the analyzer are rotating synchronously in the same direction at a speed ratio ... -
Binary photonic crystal for refractometric applications (TE case)
(Springer India, 2018)In this work, a binary photonic crystal is proposed as a refractometric sensor. The dispersion relation and the sensitivity are derived for transverse electric (TE) mode. In our analysis, the first layer is considered to ... -
Characteristics of electromagnetic waves in slab waveguide structures comprising chiral nihility film and left-handed material claddings
(Urban & Fischer, 2017)We analytically present the dispersion equation of an asymmetric three-layered chirowaveguides, in which the core and the claddings are different chiral materials. Then, we produce the dispersion equation for a symmetric ... -
Characteristics of left-handed multilayer slab waveguide structure
(2011)We examine analytically the propagation of TE-polarized waves in a four-layer slab waveguide structure. One of the layers is considered as a Left-handed or metamaterial with simultaneously negative ε and µ. The dispersion ... -
Characteristics of Symmetric Left-Handed Material Slab Waveguide
(IOSR Journals, 2016)In this paper, a symmetric three-layer slab waveguide is investigated. The guiding layer and the surrounding medium are assumed to be left-handed materials of negative permittivity and permeability. The dispersion equations ... -
Characterization of Poly (9-vinylcarbazole) and 8-Hydroxyquinoline Aluminum Using a Homemade Rotating Analyzer Ellipsometer
(عمادة البحث العلمي-الجامعة الاسلامية-غزة, 2011)In this work we use a homemade spectroscopic ellipsometer to study two commonly used organic materials; namely poly (9-vinylcarbazole)(PVK) and 8-hydroxyquinoline aluminum (Alq3). The ellipsometric parameters ψ and Δ are ... -
Characterization of PVK Polymeric Material Using Rotating Polarizer and Analyzer Ellipsometer with a Speed Ratio 1
(2016)A homemade spectroscopic ellipsometer is designed indigenously to characterize Si-SiO2 sample and two Poly (9-vinylcarbazole)(PVK) films. In the constructed ellipsometer, the polarizer and analyzer rotate in the same ... -
Comparing optical sensing using slab waveguides and total internal reflection ellipsometry
(The Scientific and Technological Research Council of Turkey, 2011)The sensitivity of the effective refractive index of slab waveguide sensors to variations in the refractive index of the cladding is compared to that of the ellipsometric parameters. The changes of the effective refractive ... -
Design of a spectroscopic ellipsometer by synchronous rotation of the polarizer and analyzer in opposite directions
(2014)In this article, a spectroscopic ellipsometer is constructed in rotating polarizer and analyzer configuration. Instead of continuous rotation and integration for waveform analysis, a step and scan method was adopted for ... -
Design of one dimensional defect based photonic crystal by composited superconducting material for bio sensing applications
(Elsevier BV, 2019-11)A novel biosensor based on 1-D defect photonic crystal is suggested to be consisting of alternate layers of SiO2 and Air. At the middle, there exists a cavity layer encapsulated with a composite layer of superconducting ... -
Development and construction of rotating polarizer analyzer ellipsometer
(Elsevier, 2011)A detailed mathematical derivation and an experimental characterization of one to two ratio rotating polarizer analyzer ellipsometer (RPAE) are presented. The alignment, calibration, and testing of reference samples are ...