Effective Permittivity and Optical Properties of Photonic/Plasmonic Structures in Nanocomposite Glass
O. Kiriyenko, W. Hergert, S. Wackerow, and H. Graener
Institut für Physik, Naturwissenschaftliche Fakultät II, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
In this presentation, we study the optical properties of different photonic structures.
N. Katte, J. Haus, J.B. Serushema, and M. Scalora
University of Dayton, Dayton, OH, USA
Charles M. Bowden Research Center, Redstone Arsenal, AL, USA
We show that diffraction can be suppressed in a one-dimensional metallodielectric stack (MDS) at visible wavelengths to achieve super-resolution imaging. In our calculations we use two popular techniques, which can be adapted to investigate the imaging properties of MDSs. The two methods are the transfer matrix method (TMM) and the Finite element method based software, COMSOL Multiphysics. The ...
T. Hutter, N. Bamiedakis, and S. Elliott
Department of Chemistry, University of Cambridge, UK
Centre for Advanced Photonics and Electronics, Engineering Department, University of Cambridge, UK
The finite-element method (FEM) (COMSOL RF Module) has been employed for modal analyses of porous silicon (PSi) waveguides composed of a guiding layer of low porosity (high refractive index) on a cladding layer with higher porosity (lower refractive index). These can be made by switching the current density from a lower to a higher value during the electrochemical etching process. The ...
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.
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 ...
B. Kreisler, G. Anton, J. Durst, and T. Michel
Physikalisches Institut Abt. IV, Erlangen
The motion of free charge carriers in semiconductors was simulated using the convection and diffusion module in COMSOL. The focus of this work is the sensor layer of the Medipix2 x-ray detector, in our case made of silicon. The charge cloud generated by photon interactions within the sensor material moves through the material due to an applied electric field. The charges are collected by the ...
Complex K-Bands Calculation for Plasmonic Crystal Slabs by Means of Weak Formulation of Helmholtz's Eigenvalue Equation
G. Parisi, P. Zilio, F. Romanato
University of Padova, Padova, Italy
We present a Finite Element Method (FEM) to calculate the complex valued k(?) dispersion curves of a photonic crystal slab in presence of both dispersive and lossy materials. In particular the method can be exploited to study plasmonic crystal slabs. We adopt Perfectly Matched Layers (PMLs) in order to truncate the open boundaries of the model, including their related anisotropic permittivity and ...
Toyama Prefectural University
In order to design invisibility cloak, we use two different type of spaces: Physical space and Mathematical space. This paper is in Japanese.
FE Modeling of Surfaces with Realistic 3D Roughness: Roughness Effects in Optics of Plasmonic Nanoantennas
J. Borneman, A. Kildishev, K. Chen, and V. Drachev
School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana, USA
COMSOL Multiphysics has been widely used to model the near and far-field electromagnetics (specifically, transmission and reflection spectra) of gold and silver nanoantenna arrays. We use a moving 3D mesh, thus preserving the DOF number and simply morphing the structure of the mesh to accommodate the moving boundary. The electromagnetics model consist of four multiphysics models, two ...
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 ...