Results 51 to 60 of about 12,401 (157)

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

Enhanced optical transmission of the triple-layer resonant waveguide structure

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2016
In this paper, we propose and demonstrate a novel guided-mode resonant filter based on a metallic grating sandwiched between two dielectric layers for TE polarization. A theoretical model based on rigorous coupled wave analysis has been developed.
I.Ya. Yaremchuk
doaj   +1 more source

Resonant transmission and mode modulation of acoustic waves in H-shaped metallic gratings

AIP Advances, 2015
In this work, we demonstrate that resonant full transmission of acoustic waves exists in subwavelength H-shaped metallic gratings, and transmission peaks can be efficiently tuned by adjusting the grating geometry.
Yu-Qiang Deng, Dong-Xiang Qi, Ren-Hao Fan, Kun Zhang, Ru-Wen Peng   +4 more
doaj   +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

Modeling full PCSELs and VCSELs using modified rigorous coupled-wave analysis [PDF]

Optics Express
An integrated rigorous coupled-wave analysis (RCWA) algorithm is presented in this paper, which can simulate full vertical-cavity surface-emitting laser (VCSEL) and photonic crystal surface-emitting laser (PCSEL) structures. A classic RCWA can only analyze a structure when the light source is incident from the top, bottom, or both sides of the device ...
Jingxiao Xu, Douglas McCulloch, Martin D. B. Charlton   +2 more
openaire   +3 more sources

D 1 and D 2 resonances in coupled-channel scattering amplitudes from lattice QCD

Journal of High Energy Physics
Isospin-1/2 charmed axial-vector D ∗ π − D ∗ η − D s ∗ K ¯ $$ {D}_s^{\ast}\overline{K} $$ scattering amplitudes are computed, along with interactions in several other I = 1/2 J P channels. Using lattice QCD, we work at a light-quark mass corresponding to
Nicolas Lang, David J. Wilson, for the Hadron Spectrum collaboration   +2 more
doaj   +1 more source

Influence of Thickness on the Holographic Parameters of H-PDLC Materials

International Journal of Polymer Science, 2014
For photopolymers the compound concentrations and final thickness of the sample should be known in order to model hologram formation and introduce the reaction-diffusion kinetics of the monomer-polymer system.
S. Gallego, M. Ortuño, A. Márquez, R. Fernández, M. L. Álvarez, A. Beléndez, I. Pascual   +6 more
doaj   +1 more source

Three-Layer Grating With the Enhanced Efficiency and Angular Bandwidth

IEEE Photonics Journal, 2017
We theoretically and numerically analyze and design a three-layer rectangular-groove dielectric grating based on modal design and rigorous numerical calculation.
Hongtao Li, Bo Wang
doaj   +1 more source

Simple Rectangular Gratings as a Near-Field “Anti-Reflection” Pattern for GaSb TPV Cells

Scientific Reports, 2017
We show theoretically that 2D rectangular gratings on the surface of GaSb can serve as an “anti-reflection” pattern for nano-gap thermophotovoltaic (TPV) devices, which significantly enhances near-field radiative flux from the emitter to a GaSb cell ...
Haitong Yu, Dong Liu, Zhen Yang, Yuanyuan Duan   +3 more
doaj   +1 more source

Optical Properties of Complex Plasmonic Materials Studied with Extended Effective Medium Theories Combined with Rigorous Coupled Wave Analysis. [PDF]

Materials (Basel), 2018
Nadal E, Barros N, Glénat H, Kachakachi H.   +3 more
europepmc   +1 more source