A.H. Hegab, J.P. Kaerst
HAWK, University of Applied Sciences and Arts, Goettingen, Germany
Rotor blades for wind turbines are made of GFRP material. They have to be designed to withstand wind and weather over their approximately 20 years of lifetime. The ability to monitor the mechanical stress is crucial in order to reduce maintenance costs and to maximize operational availability. This paper presents the combination of SPICE® and COMSOL Multiphysics®, in order to reduce ...
C. T. Nadovich ,
 Lafayette College, Easton, PA, USA
The use of grating couplers to couple conventionally phased and polarized light near vertically in and out of optical slab or film waveguides  represents an attractive method to interface optical fiber to photonic ICs. Previously developed grating coupler designs use transversely uniform grating structures matched to conventional scalar fiber modes. The performance of these geometries can be ...
T. Santos, L.C. Costa[1,2], M. Valente[1,2], J. Monteiro[1,2], and J. Sousa
University of Aveiro, Portugal
I3N, Aveiro, Portugal
TEKA Portugal S.A., Ílhavo, Portugal
In microwave heating applications, the energy is introduced directly into the volume of the material and as consequence the quality of the process is highly dependent on the uniformity of the electromagnetic field distribution along it. That is, the non uniformity of the heating is a potential problem with serious consequences. Thermal runaway is the most critical, in materials with temperature ...
G. Latha, P. Nair
SSN College of Engineering, Chennai, Tamil Nadu, India
In a solid core PCF, structural parameters and the number of rings in the cladding region decide confinement losses, dispersion coefficients as well as bending losses. This paper evaluates some of commercially available solid core photonic crystal fibers. The dispersion coefficients and sensitivity of these fibers are estimated using COMSOL Multiphysics®, and compared with the theoretical values ...
K. C. Koppenhoefer , S. Yushanov , J. S. Crompton ,
 AltaSim Technologies, Columbus, OH, USA
Surface Plasmons (SP) or Surface Plasmon Polaritons (SPP) are electromagnetic excitations that propagate at the interface between a dielectric and a conductor, and are evanescently confined in the perpendicular direction to the propagation. They arise via coupling of the electromagnetic field to oscillations of the conductor’s electron plasma and are characterized in terms of dispersion and ...
J. Toney, J. Retz, V. Stenger, A. Pollick, P. Pontius, S. Sriram
SRICO, Inc., Columbus, OH, USA
This paper presents techniques for modeling annealed proton exchange (APE) and reverse proton exchange (RPE) waveguides in periodically poled lithium niobate for application to optical frequency conversion. A combination of time-dependent diffusion modeling and electromagnetic mode analysis using the RF module are used to predict the relationship between the poling period and the second harmonic ...
J. L. Muñoz , D. de Cos , I. Madariaga , I. Bustinduy 
 ESS-Bilbao, Bilbao, Spain
The design of ESS-Bilbao RFQ (RadioFrequency Quadrupole) linear accelerator cavity using COMSOL Multiphysics is presented. The work includes geometry definition, electrostatics, electromagnetic and thermomechanical coupled simulations. The main part of the work corresponds to the electromagnetic design. Geometry construction and meshing is very challenging, involving large models (3 m long) with ...
Numerical Simulation of the Heat, Mass, and Momentum Transfer During the Microwave Drying of Osmodehydrated Porous Material - new
J. R. Arballo[1, 2], L. A. Campañone[1, 2], R. H. Mascheroni[1, 2]
Universidad Nacional de La Plata (UNLP), La Plata, Buenos Aires, Argentina
Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA), La Plata, Buenos Aires, Argentina
Recent studies have been devoted to develop mathematical models to simulate the food processing using the porous media approach. The aim of this study is to simulate the microwave drying of osmodehydrated food by means of modeling the mass, energy and momentum transfer using the porous media approach. Microwave drying involves complex physical mechanisms which should be taken into account in the ...
G. Bachelier , L. Olgeirsson , S. Waterman , J. Sharma , E. Dujardin , A. Bouhelier , S. Huant 
 Institut Néel, CNRS - Joseph Fourier University, Grenoble, France
 Imperial College, London, England
 CEMES, CNRS, Toulouse, France
 LICB, CNRS – Bourgogne University, Dijon, France
The unique optical properties of plasmon resonances in noble metal nanoparticles have been extensively investigated owing to their ability to enhance the electric field amplitude but also to tailor its spectral and spatial distribution. Among all application domains, nonlinear optics play a singular role since the efficiency of the underlying physical processes are driven by specific symmetry ...
S. C. Hegde
VIT University, Vellore, Tamil Nadu, India
The coaxial cable is one of the most commonly used bandwidth limited signal transmission line.Dispersion is a signal distortion phenomenon which arises due to frequency dependence of phase velocity of signal components. This phenomenon was explained through time domain approach by studying time taken by signals of various frequencies to propagate through the cable, which eventually may cause ...