Browsing by Author "1aca0066-fbaa-415d-baf1-a3b946107990"

Now showing items 1-8 of 8

Atom lithography is one of the latest proposals for high-resolution printing. The mask design and generation is key step for implementation of this method. In this paper, we …

Jiang, Jinguang; Wang, Yaonan; Ashour, HS; A.I., Ass''ad; Shabat, Mohammed M.; Hamada, Majde S. (2006)

A new fully differential amplifier and a fully differential R-MOSFET-C fourth-order Chebyshev active lowpass filter employing passive resistors and current-steering MOS transistors as variable resistors are proposed. The ...
Effect of Trap-assisted Tunneling (TAT) on the Performance of Homojunction Mid-Infrared Photodetectors based on InAsSb. P. Chakrabarti, A. Gawarikar, V. Mehta, and D. Garg …

Silva, Cardozo DA; Martelli, Cicero; Penner, Elisabeth; Kalinowski, Hypolito José; Hamada, AI; Ashour, HS; Ashour, H-s; Shabat, Mohammed M. (2006)

Theoretical investigations have been carried out to explore the effect of trap-assisted tunneling on the performance characteristics of an InAsSb p +-n homojunction photodetector supposed to be grown on InAs substrate. ...
Electronic conductance in binomially tailored quantum wire

Ashour, HS; A.I., Ass''ad; Shabat, Mohammed M.; Hamada, Majde S. (Elsevier, 2006)

We have studied the electronic transmission properties through binomially tailored waveguide quantum wires with Dirac delta function potentials. The potential's strength is weighted according to the binomial distribution ...
Magnetostatic surface waves in ferrite-nonlinear nonmagnetic negative permittivity material structure

A.I., Ass''ad; Ashour, HS; Shabat, Mohammed M. (World Scientific Publishing Company, 2007)

Magnetostatic surface waves have been investigated in a layered system of a nonlinear nonmagnetic negative permittivity material (NPM) and Ferrite (YIG). We derived the dispersion relation before numerically solving the ...
Nonlinear Magnetostatic Surface Waves in a Ferrite-Left-Handed Waveguide Structure

Hamada, Majde S.; A.I., Ass''ad; Ashour, HS; Shabat, Mohammed M. (2015)

The paper presents a theoretical investigation of the propagation of strongly TE nonlinear magnetostatic surface waves propagating in a composite waveguide structure of a Ferrite (YIG) film, Left-handed substrate and ...
Quantum Waveguide Transport in Binomially Tailored Dirac Delta Potential

Ashour, HS; A.I., Ass''ad; Hamada, Majde S.; Shabat, Mohammed M. (2005)

In this paper we introduce a novel structure of waveguide quantum wires, which is the binomially tailored sequence of Dirac delta function potentials with binomial distribution law. We have assumed scattering of electrons ...
The deffect effect on electronic conductance in binomially tailored quantum wire

Ashour, HS; A.I., Ass''ad; Shabat, Mohammed M. (Elsevier BV, 2007)

The paper considers the effect of the defects on the electronic transmission properties in binomially tailored waveguide quantum wires, in which each Dirac delta function potential strength have been weight on the binomial ...
Tunable External Cavity Semiconductor Lasers.

Ashour, HS; Al-Sahhar, Zeyad I; Shabat, Mohammed M.; Buttiker, M; Chow, K; Sargent, M Iii; Chuang, SL; Durate, FJ; Piper, JA; Hong, J; Kim, H; Makino, T; Jerman, JH; Grade, JD; Berger, JD; Heanue, JH; Landauer, R; Littman, MG; Metcalf, HJ; Mason, B; Fish, GA; Den-Baars, SP; Coldren, LA; Moskalets, M; Peterson, OG; Tuccio, SA; Snavely, BB; Schafer, FP; Schmidt, W; Volze, J; Shoshan, I; Danon, NN; Oppenheim, UP; Sorokin, PP; Lankard, JR; Tang, CS; Tan, YH; Chu, CS; Vakhshoori, D; Tayebati, P; Lu, CC; Azimi, M; Wang, P; Zhou, JH; Canoglu, E; Verdeyen, JT; Wenjun, L; Reichl, LE; Yariv, A; Zorabedian, P (orgz, 2005)

In this study, we propose a new method to tune the semiconductor laser lasing frequency and reducing the laser linewidth using an external deriving field. We redeveloped Floquet S-matrix which determines the transmission ...