Results 21 to 30 of about 664 (133)

Analysis and Prediction of Image Quality Degradation Caused by Diffraction of Infrared Optical System Turning Marks

Photonics, 2023
This paper addresses the issue of reduced image quality due to annular turning marks formed by single-point diamond turning (SPDT) during the processing of metal-based mirrors and infrared lenses.
Haokun Ye, Jianping Zhang, Shangnan Zhao, Mingxin Liu, Xin Zhang   +4 more
doaj   +1 more source

Reducing complexity in photonic simulations: ZenScat — an efficient 2D RCWA solver

SoftwareX
We present a comprehensive solver implementation of a 2D Rigorous Coupled Wave Analysis (RCWA), tailored specifically for conformal thin multilayer devices and 2D photonic crystals with arbitrary interface profiles.
I. Lukosiunas, D. Gailevicius, K. Staliunas   +2 more
doaj   +1 more source

Reconciling measured scattering response of 3D metamaterials with simulation

EPJ Applied Metamaterials, 2015
Membrane projection lithography is used to create 3-dimensional unit cells in a silicon matrix decorated with metallic inclusions. The structures show pronounced resonances in the 4–16 µm wavelength range and demonstrate direct coupling to the magnetic ...
Adomanis Bryan M., Resnick Paul J., Bruce Burckel D.   +2 more
doaj   +1 more source

Directional spectral emissivity characterization and modeling of laser-patterned steel surfaces [PDF]

EPJ Web of Conferences
We present preliminary results on the fabrication of patterned surfaces by Direct Laser Interference Patterning and the characterization and theoretical interpretation of their infrared emissivities.
Gabirondo-López Jon, González de Arrieta Iñigo, Soldera Marcos, Lasagni Andrés F., Arredondo Iñigo, Igartua Josu M., López Gabriel A.   +6 more
doaj   +1 more source

Highly Efficient Rigorous Coupled-Wave Analysis Implementation Without Eigensystem Calculation

IEEE Access
The Rigorous Coupled Wave Analysis (RCWA) method is commonly used to simulate diffractive optical devices, such as photonic crystal LEDs, solar cells, and gratings.
Jingxiao Xu, Martin D. B. Charlton
doaj   +1 more source

Rigorous Coupled-Wave Analysis Algorithm for Stratified Two-Dimensional Gratings with Unconditionally Stable H-Matrix Methods

Photonics
Nanostructures with the two-dimensional (2D) periodicity are attracting increasing attention due to their promising applications in planar optical devices and their potential for scalable industrial production. While Rigorous Coupled-Wave Analysis (RCWA)
Kaixuan Song, Jiyong Wang, Gaofeng Wang
doaj   +1 more source

Calculation of the Localized Surface Plasmon Resonances of Au Nanoparticles Embedded in NiO

Solids, 2022
The present article examined the influence of size and periodicity of simulated gold (Au) nanoparticles (NPs) embedded in Nickel Oxide (NiO) matrix on localized plasmonic resonances (LSPRs).
Maria Tsarmpopoulou, Alexandros G. Chronis, Mihail Sigalas, Alkeos Stamatelatos, Panagiotis Poulopoulos, Spyridon Grammatikopoulos   +5 more
doaj   +1 more source

Degenerate bound states in the continuum in a grating waveguide: Method of infinite-grating eigenmodes vs numerical Rigorous Coupled Wave Analysis (RCWA)

Journal of Physics: Conference Series
Abstract We reveal the origin and describe properties of degenerate bound states in the continuum which appear when a conventional symmetry-protected bound state in the continuum meets a leaking waveguide eigenmode. A degenerate bound state in the continuum emerges due to a destructive interference of two crossing, non-leaking odd-parity
Cole Reynolds, Vitaly Kocharovsky
openaire   +1 more source

Scalable simple liquid deposition techniques for the enhancement of light absorption in thin films: Distributed Bragg reflectors coupled to 1D nanoimprinted textures

AIP Advances, 2017
Light trapping within a light absorbing medium is a key to highly efficient thin film solar cells. We propose a large-scale procedure based on materials with low absorption for the fabrication of combined Distributed Bragg Reflector (DBR) and grating ...
B. Brudieu, I. Gozhyk, W. R. Clements, S. Mazoyer, T. Gacoin, J. Teisseire   +5 more
doaj   +1 more source

Rigorous coupled-wave analysis of absorption enhancement in vertically illuminated silicon photodiodes with photon-trapping hole arrays

Nanophotonics, 2019
In this paper, we present a rigorous coupled-wave analysis (RCWA) of absorption enhancement in all-silicon (Si) photodiodes with integrated hole arrays of different shapes and dimensions.
Gou Jun, Cansizoglu Hilal, Bartolo-Perez Cesar, Ghandiparsi Soroush, Mayet Ahmed S., Rabiee-Golgir Hossein, Gao Yang, Wang Jun, Yamada Toshishige, Devine Ekaterina Ponizovskaya, Elrefaie Aly F., Wang Shih-Yuan, Islam M. Saif   +12 more
doaj   +1 more source