Y.A. Urzhumov[,], N.I. Landy[,], C. Ciraci, D.R. Smith[,]
Department of Electrical and Computer Engineering, Pratt School of Engineering, Duke University, Durham, NC, USA
Center for Metamaterials and Integrated Plasmonics, Pratt School of Engineering, Duke University, Durham, NC, USA
Linear wave propagation through inhomogeneous structures of size R?? (Fig.1) is a computationally challenging problem, in particular when using finite element methods, due to the steep increase of the number of degrees of freedom as a function of R/?. Fortunately, when the geometry of the problem possesses symmetries, one may choose an appropriate basis in which the stiffness matrix of the ...
T. Gál, Ö. Sepsi, P. Koppa
Budapest University of Technology and Economics, Budapest, Hungary
Plasmonic nanoparticles have received increased interest due to their numerous potential applications in the field of optics and optoelectronics. Currently such metallic nanoparticles are applied in semiconductor devices, such as light emitting diodes (LEDs) and solar cells. The optical behaviour of a single plasmonic nanoparticle is can be easily described with several analytic or semianalytic ...
Numerical simulations of heat effects compared to measurements in III-V semiconductor saturable absorbers.
LePaul, S., Yang, N., Aniel, F.
Institut d’Electronique Fondamentale, Université Paris XI – CNRS UMR 8622, Orsay
The major purpose of this communication is to share our experiences on the numerical difficulties we ended up in simulating heating effects of saturable absorbers based on III-V semiconductors with the commercial finite element software FEMLAB 3.1. Saturable absorbers are devices devoted to full optical signal regeneration in optical telecom systems. The self heating effects in the structures ...
M. J. Li, J. A. West, and K. W. Koch
Science and Technology Division, Corning Inc., Corning, NY, USA
The cross-section of a real air-core photonic band-gap fiber with structural distortions is analyzed using a vectorial finite element method and compared with an ideal structure.It is found that the properties of aircore photonic band-gap fibers are extremely sensitive to changes of the structural parameters. Structural distortions in real fibers have significant impact on fiber properties such ...
P. Mikulski, K. Mcilhany, and R. Malek-Madani
United States Naval Academy
Here we present and discuss numerical solutions to the paraxial wave equation using COMSOL (2D, PDE, General Form, time-dependent analysis). Ultimately, the goal is to extend this treatment of free-space beam propagation to the case of propagation through a medium that is non-uniform and subject to non-linear effects where the beam itself is modifying the properties of the medium in which it is ...
D. Grabovi?ki?, J.C. González, P. Benítez, J.C. Miñano
Cedint Universidad Politécnica de Madrid, Madrid, Spain
Negative Refractive Lens (NRL) has shown that an optical system can produce images with details below the classic Abbe diffraction limit. This optical system transmits the electromagnetic fields, emitted by an object plane, towards an image plane producing the same field distribution in both planes. Recently, two devices with positive refraction, the Maxwell Fish Eye lens (MFE) (Leonhardt et al. ...
C. Kraeh, and H. Hedler
Siemens AG, Munich
We are developing a solid state gas sensor that combines a small form factor with the high sensitivity of optical gas detection. The gas sensor is based on an optical resonant microsystem that is penetrated by gas molecules. This microsystem consists of an array of vertical rods in air forming a photonic crystal. Light propagates through the photonic crystal along a line defect waveguide. For ...
Light Scattering Simulation of Nano-objects on the Surface of Silicon Wafers by 3D Finite Element Method
Y. Oshikane, T. Higashi, N. Taniguchi, M. Nakano, and H. Inoue
Dept. of Prec. Sci. and Technology
Grad. School of Eng.
Nanotechnology is rated as a key technology of the 21st century. In the field of nano-optics already at present, state-of-the-art scientific experiments and industrial applications exhibit nanometer to sub-nanometer design tolerances. This motivates the development and application of fast and accurate simulation tools for these fields or electromagnetic (EM) field.
I. Lancranjan and C. Gavrila
Advanced Study Centre, National Institute for Aerospace Research “Elie Carafoli”, Bucharest, Romania
Technical University of Civil Engineering Bucharest, Bucharest, Romania
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 flights. The main basic idea of Doppler techniques consists in measuring the frequency of scattered light. In this paper, we propose a study of a laser Doppler ...
A. Pors, O. Albrektsen, S.I. Bozhevolnyi, and M. Willatzen
Mads Clausen Institute, University of Southern Denmark, Sønderborg, Denmark
Institute of Sensors, Signals and Electrotechnics, University of Southern Denmark, Odense, Denmark
The use of plasmonic effects to dramatically enhance the electromagnetic field near the surface of a metallic nanostructured surface has grown into a large research area in the effort to take advantage of the surface enhanced field. In this paper the electromagnetic field near a nano-sized truncated spherical cavity embedded in a gold substrate is investigated and modeled in 3D with COMSOL ...