Hammer, Manfred Ebers, Lena Förstner, Jens
Published in
Optical and Quantum Electronics
A dielectric step-index optical fiber with tube-like profile is considered, being positioned with a small gap on top of a dielectric slab waveguide. We propose a 2.5-D hybrid analytical/numerical coupled mode model for the evanescent excitation of the tube through semi-guided waves propagating in the slab at oblique angles. The model combines the d...
Arkani, Reza Broderick, Christopher A. O’Reilly, Eoin P.
Published in
Optical and Quantum Electronics
We present a theoretical analysis of the electronic properties of type-II GaAs1-xSbx\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\hbox {GaAs}_{1-x} \hbox {Sb}_{x}$$\...
Al-Toki, Hussein G. Al-Khursan, Amin Habbeb
Published in
Optical and Quantum Electronics
This work proposes a double quantum dot (DQD) system, with a wetting layer (WL) is included, to study the negative refractive index (NRI) under the application of the electric fields: pump, probe, and fields between WL-QD state, in addition to the magnetic field. The density matrix theory is used to write the equation of motion and an orthogonalize...
Yu, Hyong Su Yu, Nam Chol Rim, Jong Ai Jo, Myong Jin
Published in
Optical and Quantum Electronics
Humidity sensor module fabricated using acrylic resin and PSD (position sensitivity detector). In order to directly convert to electrical signal from output signal of optical humidity sensor system consisted of a light source, a gap, and an acrylic resin film coated on PSD. For the purpose of convert to 4–20 mA signal from current change according ...
Thahe, Asad A. Shaheen, Basamat S. Uday, M. B. Abdullah, Mundzir Qaeed, M. A. Alqaraghuli, Hasan Allam, Nageh K.
Published in
Optical and Quantum Electronics
This study investigates the electrical and photoresponse properties of Nd-YAG annealed Pt/n-PSi/Pt photodetectors. A porous silicon (PSi) layer was deposited on a single crystalline n-type Si via photoelectrochemical etching in aqueous hydrofluoric acid at 45 mA cm−2 for 30 min. Annealing of the n-PSi layer was conducted using a Q-switching Nd:YAG ...
Islam, Md. Ekramul Barman, Hemonta Kumar Akbar, M. Ali
Published in
Optical and Quantum Electronics
The coupled Higgs field equation is significant for describing a system of conserved scalar nucleons interacting with the neutral scalar meson. The improved Bernoulli sub-equation function method and the sine–Gordon expansion method have been put in used in the current article, to interpret the dynamism of the particles through analytical solutions...
Koushki, Ehsan Kazemi, Maziyar
Published in
Optical and Quantum Electronics
A method for control and modification of solar cell efficiency using a plano-convex cylindrical lens is proposed. Optical effects of a plano-convex cylindrical lens placed on a solar cell are detailed theoretically and numerical simulations are used to modify the efficiency of the cell. It was found that the lens could reduce the incident angle of ...
Haseli, Soroush Haddadi, Saeed Pourkarimi, Mohammad Reza
Published in
Optical and Quantum Electronics
The uncertainty principle is one of the key concepts in quantum theory. This principle states that it is not possible to measure two incompatible observables simultaneously and accurately. In quantum information theory, the uncertainty principle is formulated using the concept of entropy. In this work we consider the entropic uncertainty relation i...
Sayed, Fatma A. Elsayed, Hussein A. Aly, Arafa H.
Published in
Optical and Quantum Electronics
In this work, we present a new type of the one dimensional photonic crystals that contain graphene based nanocomposite and dielectric layers. Here, the nanocomposite layer is designed form graphene nanoparticles into a dielectric host material. By using transfers matrix method, Maxwell–Garnett formula, and Kubo formula, the properties of photonic b...
Salim, Evan T. Saimon, Jehan A. Abood, Marwa K. Fakhri, Makram A.
Published in
Optical and Quantum Electronics
This work presents the deposition of Nb2O5 on p and n type silicon substrate. Nb2O5 thin film was deposited using precipitation method for solution preparation, and employing spin coating technique for film deposition, where optimum preparation condition were achieved in our previous published article. The electrical characteristic shows a good rec...
