Department of Materials Engineering,
The University of Tokyo
This paper showed that: * SAG-MOCVD is a powerful tool to fabricate OEICs and is also effective to extract true surface kinetics during MOCVD. * GaAs-MOCVD process was examined by SAG analysis where it was seen that below 600ºC, surface kinetics shows non-linear behavior. * Surface reaction rate constant of adsorbed species was constant against offset angle, while adsorption equilibrium ...
Non-Equilibrium Quantum Well Populations and Optical Characteristics of III-Nitride Lasers and Light-Emitting Diodes
M. Kisin, and H. El-Ghoroury
Ostendo Technologies, Inc.
COMSOL-based Ostendo’s Optoelectronic Device Modeling Software (ODMS) has been updated to include effects of non-equilibrium QW populations in semiconductor light-emitting and laser diodes. III-nitride light emitters with different levels of polarity have been compared as an illustrative example of ODMS performance. Modeling proved that high intra-QW recombination rates in III-nitride light ...
Electromagnetic Parameters Extraction for Integrated-Circuit Interconnects for Open Three Conductors with Two Levels Systems
S.M. Musa, M.N.O. Sadiku, J.D. Oliver
Prairie View A&M University, Prairie View, TX, USA
The accurate estimate of values of electromagnetic parameters are essential to determine the final circuit speeds and functionality for designing of high-performance integrated circuits and integrated circuits packaging. In this paper, a new quasi-TEM capacitance and inductance analysis of multiconductor multilayer interconnects is successfully demonstrated using the finite element method (FEM) ...
G. Poulain, D. Blanc, A. Kaminski, B. Semmache, and M. Lemiti
Université de Lyon: Institut des Nanotechnologies de Lyon INL, CNRS, INSA de Lyon, Villeurbanne, France
SEMCO Eng., Montpellier Cedex 5 - France
Silicon solar cells still require cost reduction and improved efficiency to become more competitive. New architectures can provide a significant increase in efficiency, but today most of the approaches need additional processing steps. In this context, laser processing offers a unique way to replace technological steps like photolithography that is not compatible with the requirements of the ...
G. Demésy, F. Zolla, A. Nicolet, and M. Commandré
Institut Fresnel, Université Aix-Marseille III, École Centrale de Marseille, France
We demonstrate the accuracy of the Finite Element Method (FEM) to characterize an arbitrarily shaped crossed-grating in a multilayered stack illuminated by an arbitrarily polarized plane wave under oblique incidence. To our knowledge, this is the first time that 3D diffraction efficiencies are calculated using the FEM. The method has been validated using classical cases found in the literature. ...
B. Mizaikoff, X. Wang, and S.-S. Kim
Institut für Analytische und Bioanalytische Chemie
Evanescent-wave optical waveguide is widely used as sensing platform for chemical/biological sensor applications. Our research group contributed to on-chip IR sensor technology and made recent progress in miniaturizing such devices utilizing quantum cascade lasers (QCL) in combination with planar GaAs/Al0.2Ga0.8As waveguides. Furthermore progress is reported toward microfabricated Mid-infrared ...
Untersuchung der Polarisationseigenschaften einer mikrostrukturierten optischen Faser unter dem Einfluss äußerer Belastung
A. Unger, and K.H. Witte
 FH-Wiesbaden, Fachbereich Physikalische Technik, Rüsselsheim;
 FH-Wiesbaden, Fachbereich Elektrotechnik, Rüsselsheim
Mit Hilfe des Softwareprogramms COMSOL zur Modellierung physikalischer Vorgänge wurden die Polarisationseigenschaften einer mikrostrukturierten Singlemodefaser untersucht. Ausgangspunkt der Simulationen waren experimentelle Untersuchungen, nach denen diese Faser eine ungewöhnlich starke Doppelbrechung aufwies. Die Doppelbrechung der Faser und damit ihre Fähigkeit zur Polarisationserhaltung ...
E. Madieta, V. Piron, A. Flament, J.P. L’Huillier, and E. Mehinagic
PRES L’UNAM, ESA, Grappe, Angers, France
ENSAM Paristech, Angers, France
Since the invention of laser sources, understanding the interaction between the laser and biological tissues is a subject of great importance because of their medical applications in particular for diagnostic purposes. They recently found a growing interest in the sector of the arboriculture to check the fruits quality in a non-destructive way. In this work, we study the interaction between the ...
EIHES, Ecole d’Ingénieurs de Genève
Electron interferometry using the Aharonov-Bohm (AB) effect finds many applications in industrial areas such as future nanocomputer technologies, physical random number generators, electron phase microscopy and holography, to name just a few. The presence of a confined magnetic field surrounded by the interferometer arms, as originally proposed by Aharonov and Bohm is however a source of ...
S. Musa, M. Sadiku, and O. Momoh
Roy G. Perry College of Engineering, Prairie View A&M University, Prairie View, TX
Indiana University-Purdue University
Development of very high speed integrated circuits is currently of great interest for today\'s technologies. This paper presents the quasi-TEM approach for the accurate parameters extraction of multiconductor transmission lines interconnect in single, two, and three-layered dielectric regions using the finite element method (FEM). We illustrate that FEM is accurate and effective for modeling ...