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Papers & Presentations

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Showing results 1 - 20 of 77

Optical Systems & Photonics

	Accurate Parameters Extraction of Multiconductor Transmission Lines in Multilayer Dielectric Media 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... COMSOL Conference 2011, Boston S. Musa¹ , M. Sadiku¹ , and O. Momoh² ¹ Roy G. Perry College of Engineering, Prairie View A&M University, Prairie View, TX ² Indiana University-Purdue University
	An All-Purpose Full-Vectorial Finite Element Model for Arbitrarily Shaped Crossed-Gratings 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,... COMSOL Conference 2009, Milan G. Demésy¹ , F. Zolla¹ , A. Nicolet¹ , and M. Commandré¹ ¹ Institut Fresnel, Université Aix-Marseille III, École Centrale de Marseille, France
	Analysis Of Linearly Polarized Modes This paper presents a study on the propagation modes of electromagnetic waves through a step index fiber optics. To analyze the propagation of electromagnetic field, a simulation in Comsol 4.0 has been implemented using two different... COMSOL Conference 2011, Stuttgart I. Avram, and I. Gavril Tarnovan The Technical University of Cluj Napoca Cluj, Romania
	Analysis of Magnetic Resonance in Metamaterial Structure ‘Metamaterial’ is one of the most recent topic in several areas of science and technology due to its vast potential in various applications. These are artificially fabricated materials which exhibit negative permittivity and/or... COMSOL Conference 2011, Bangalore C. Rajni¹ , and A. Marwaha² ¹ Shaheed Bhagat Singh College of Engineering And Technology, Ferozepur, Punjab, India ² Sant Longowal Institute of Engineering And Technology, Sangrur, Punjab, India
	Analyzing the Performance of Lined and Unlined Simplified Cylindrical Cloaks The performance of simplified cylindrical cloaks with various material parameters was investigated. The performance metric was the overall scattering width of the cloak with various objects in the hidden region. COMSOL was used to... COMSOL Conference 2008, Boston J. McGuirk and P. Collins Air Force Institute of Technology, WPAFB, OH, USA
	An Efficient Approach to Identifying a Complete Photonic Band Gap in Two-dimensional Photonic Crystals with Omnidirectional Light Propagation Omnidirectional light propagation in two-dimensional (2D) photonic crystals (PCs) is investigated. An efficient approach to identifying a complete photonic band gap (PBG) in 2D PCs has been developed. The in-plane band structure of 2D... COMSOL Conference 2007, Taipei R. F. Jao^1,2, and M.-C. Lin¹ ¹NanoScience Simulation Laboratory, Department of Physics, Fu Jen Catholic University, Taipei County, Taiwan ²Department of Physics, National Cheng Kung University, Tainan, Taiwan
	A Study of Distributed Feed-Back Fiber Laser Sensor for Aeronautical Applications Using COMSOL Multiphysics Distributed Feedback Fiber Laser (DFB-FL) sensors are increasingly used in aeronautical applications. One of the newest such applications consists in detecting the “transition” zone between laminar and turbulent air flow upon the... COMSOL Conference 2010, Paris I. Lancranjan¹ , C. Gavrila² , S. Miclos³ , and D. Savastru³ ¹ Advanced Study Centre - National Institute for Aerospace Research Elie Carafoli, Bucharest, Romania ² Technical University of Civil Engineering Bucharest, Romania ³ National Institute R&D of Optoelectronics, INOE 2000, Bucharest, Romania
	A Study of Laser Doppler Anemometer Using COMSOL Multiphysics^® Laser anemometers based on application of Doppler Effect have been developed and are used in-flight, on aircrafts for measurement of air flow parameters, mainly its speed versus the airplane. The air speed measurements are vital for safe... COMSOL Conference 2009, Milan I. Lancranjan¹ and C. Gavrila² ¹ Advanced Study Centre, National Institute for Aerospace Research “Elie Carafoli”, Bucharest, Romania ² Technical University of Civil Engineering Bucharest, Bucharest, Romania
	A Study of Optical Sensor Based on Fiber Bragg Grating Using COMSOL Multiphysics^® Fiber optic sensors can measure a large range of physical, chemical and environmental variables such as temperature, pressure, shape, position, chemical concentration, moisture, etc. Fiber optic sensors provide measurements in... COMSOL Conference 2009, Milan C. Gavrila¹ and I. Lancranjan² ¹ Technical University of Civil Engineering Bucharest, Bucharest, Romania ² Advanced Study Centre, National Institute for Aerospace Research “Elie Carafoli”, Bucharest, Romania
	Berechnung von photonischen Kristallen mit Hilfe des COMSOL-Elektromagnetikmoduls Es wird gezeigt, wie man sogenannte Bandstrukturdiagramme der photonischen Kristalle mit Hilfe von COMSOL und COMSOL-Script berechnet. Dabei wird die Wellengleichung mit Hilfe des Blochansatzes zerlegt und der Kristall in der... COMSOL Conference 2006, Frankfurt A. von Rhein Universität Paderborn, Department Physik/ Fakultät Naturwissenschaften, Paderborn
	Calculating and Observing Opto-Mechanically Induced Surface Acoustic Waves in a Silica Whispering Gallery Microresonator Here we calculate opto-mechanically induced Surface Acoustic Waves upon a silica microresonator using COMSOL. Using conservation of momentum, we show both analytically and numerically that the photonphonon interaction within the resonator... COMSOL Conference 2011, Boston J. Zehnpfennig Photonics Research Center United States Military Academy West Point, NY
	Demonstration of a Novel Surface Plasmon Based Interferometer with COMSOL In order to provide swift and precise diagnostics, physicians and medical doctors require an adequate amount of information about the patient\'s condition. An integrated SPR (surface plasmon resonance) biosensing platform is currently... COMSOL Conference 2010, Boston D. Carrier, and J.J. Dubowski Université de Sherbrooke, Sherbrooke, QC, Canada
	Designing a Smart Skin with Fractal Geometry Recently, the concepts of fractal geometry have been introduced into electromagnetic and plasmonic metamaterials. With their self-similarity, structures based on fractal geometry should exhibit multi-band character with high Q factors due... COMSOL Conference 2011, Boston S. Ni, C. Yang Koh, S. Kooi, and E. Thomas Institute for Soldier Nanotechnologies Dept. of Materials Science and Eng. MIT Cambridge, MA
	Design of Electro-Optic Bragg Amplitude Modulators The subject of this work is the design of a LiNbO3 electro-optic tuned Bragg filter to be used as an amplitude modulator. We analyze in detail the realized waveguide and simulate the grating, developing a fabrication methodology for... COMSOL Conference 2006, Milan A. Secchi¹ , V. Foglietti¹ , E. Cianci¹ , L. Pierno² , and M. Dispenza² ¹ CNR-IFN, Italy ² SELEX-SI, Italy
	Drift-Diffusion and Ballistic Transport Modeling in III-Nitride Multiple-QW Light Emitting Structures COMSOL-based modeling software developed at Ostendo Technologies allows detailed simulation of semiconductor lasers and light-emitting diodes. In this work, we study the inhomogeneity of the carrier injection into optically active quantum... COMSOL Conference 2010, Boston M.V. Kisin, and H.S. El-Ghoroury Ostendo Technologies Inc., Carlsbad, CA, USA
	Dual Phononic And Photonic Band Gaps In A Periodic Array Of Pillars Deposited On A Membrane Phononic crystals are a class of materials that exhibit periodic variations in their density and elastic properties. Such crystals modify the propagation of acoustic waves and prohibit the propagation of sound for frequencies within the... COMSOL Conference 2010, Paris Y. Pennec, Y. El Hassouani, C. Li, B.D. Rouhani, E.H. El Boudouti, H. Larabi, and A. Akjouj Institut d’Electronique, de Microélectronique et de Nanotechnologie, Université de Lille, Villeneuve d’Ascq, France
	Effective Permittivity and Optical Properties of Photonic/Plasmonic Structures in Nanocomposite Glass In this presentation, we study the optical properties of different photonic structures. COMSOL Conference 2007, Grenoble O. Kiriyenko, W. Hergert, S. Wackerow, and H. Graener Institut für Physik, Naturwissenschaftliche Fakultät II, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
$Efficient Simulation of 3D Electro-optical Waveguides Using the Effective Refractive Index Method$	Efficient Simulation of 3D Electro-optical Waveguides Using the Effective Refractive Index Method 3D FEM simulation of millimeter-scale, complex electro-optically induced waveguide based devices demands the use of grids with more than several million nodes. Hence the simulation could take substantial time and require large amounts of... COMSOL Conference 2011, Stuttgart M. Herlitschke, M. Blasl, and F. Costache Fraunhofer Institute for Photonic Microsystems Dresden, Germany
	Electromagnetic Analysis of Cloaking Metamaterial Structures We study cylindrical and spherical shell structures that have cloaking material properties proposed by Pendry et al. We use 2D and 3D time-harmonic analysis to study the field distribution and power flow for various arrangements of these... COMSOL Conference 2008, Boston E. Furlani, and A. Baev The Institute for Lasers, Photonics and Biophotonics, University at Buffalo, Buffalo, NY, USA
	Electromagnetics at Optical and Microwave Frequencies using COMSOL Multiphysics The flexibility of COMSOL Multiphysics enables a variety of computational approaches to be applied towards solving electromagnetic problems across the whole spectrum. I will describe techniques for studying resonant electromagnetic... COMSOL Conference 2005, Boston Howie Stuart Bell Laboratories, Lucent Technologies Whippany, USA

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Optical Systems & Photonics