Results 31 to 40 of about 24,104,792 (158)

Efficient Wave Optics Modeling of Nanowire Solar Cells Using Rigorous Coupled Wave Analysis

, 2018
We investigate the accuracy of rigorous coupled wave analysis (RCWA) for near-field computations within cylindrical GaAs nanowire solar cells and discover excellent accuracy with low computational cost at long incident wavelengths, but poor accuracy ...
Kyle W. Robertson, Ray R. LaPierre, Jacob J. Krich   +2 more
core   +2 more sources

Artificial dielectric devices for variable polarization compensation at millimeter and submillimeter wavelengths [PDF]

, 2003
Variable polarization compensation has been demonstrated at 100 GHz. The device consists of two interlocking V-groove artificial dielectric gratings that produce a birefringence that varies with the separation distance. A maximum retardance of 74/spl deg/
Blaikie, R.J., Drysdale, T.D., Richard J. Blaikie, Cumming, D.R.S., Harold M. H. Chong, David R. S. Cumming, Chong, H.M.H., Timothy D. Drysdale   +7 more
core   +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

Inverse‐Designed Superchiral Hot Spot in Dielectric Meta‐Cavity Toward Ultra‐Compact Enantioselective Detection

Advanced Optical Materials, EarlyView.
Linearly polarized incident light with normal incidence creates enhanced optical chirality hotspots on the metasurface. Several orders of magnitude optical chirality enhancement offers a promising route toward highly sensitive, compact chiral spectroscopy.
Anastasia Romashkina, Omer Yesilurt, Vahagn Mkhitaryan, Owen Matthiessen, Min Jiang, Evgeny Lyubin, Bayarjargal N. Tugchin, Isabelle Staude, Jer‐Shing Huang, Thomas Pertsch, Alexander V. Kildishev   +10 more
wiley   +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

High‐Stress Si3N4 Reflective Membranes Monolithically Integrated With Cavity Bragg Mirrors

Advanced Optical Materials, EarlyView.
Silicon nitride membranes are record‐breaking mechanical sensors, yet their delicate fabrication and alignment into precision optical cavities have confined them to the laboratory. A monolithic process directly integrates suspended high‐stress Si3N4${\rm Si}_{3}{\rm N}_4$ membranes onto Bragg mirrors, forming self‐aligned optomechanical cavities in ...
Megha Khokhar, Lucas Norder, Paolo M. Sberna, Richard A. Norte   +3 more
wiley   +1 more source

Guided-Mode Resonances in GaN Membrane Grating

IEEE Photonics Journal, 2014
This paper proposes guided-mode resonant GaN grating that are implemented on a GaN-on-silicon wafer structure. Numerical simulations based on rigorous coupled wave analysis (RCWA) are performed to model multiple resonances in thick GaN membranes.
Zheng Shi, Xumin Gao, Xin Li, Fangren Hu, Martin Lopez-Garcia, Martin J. Cryan, Hongbo Zhu, Yongjin Wang   +7 more
doaj   +1 more source

Linear and Nonlinear Optical Tuning With Sb2S3‐Based Metasurfaces

Advanced Optical Materials, EarlyView.
Sb2S3${\rm Sb}_2{\rm S}_3$ resonant metasurfaces provide large, reconfigurable optical modulation and tunable enhanced nonlinear emission across telecommunication wavelengths. Monolithic structures achieve 92% transmission modulation and 150 nm resonance tuning, while hybridization with silicon enables strong modulation at nearly half the switching ...
Amin Zamani, Meibao Qin, Gabriel Sanderson, Lu Zhang, Sara Moujdi, Qiwei Miao, Ze Zheng, Mohammadhossein Momtazpour, Christopher J. Mellor, Wending Zhang, Ting Mei, Zakaria Mansouri, Lei Xu, Mohsen Rahmani   +13 more
wiley   +1 more source