Results 91 to 100 of about 1,677 (197)

Accurate near-field calculation in the rigorous coupled-wave analysis method [PDF]

, 2015
The rigorous coupled-wave analysis (RCWA) is one of the most successful and widely used methods for modeling periodic optical structures. It yields fast convergence of the electromagnetic far-field and has been adapted to model various optical devices ...
Weismann, M, Gallagher, DFG, Panoiu, NC
core  

Symmetry Breaking as a Basis for Characterization of Dielectric Materials

Sensors
This paper introduces a novel method for measuring the dielectric permittivity of materials within the microwave and millimeter wave frequency ranges. The proposed approach, classified as a guided wave transmission system, employs a periodic transmission
Dubravko Tomić, Zvonimir Šipuš
doaj   +1 more source

Design of Far-Infrared High-Efficiency Polarization-Independent Retroreflective Metasurfaces

Micromachines
Retroreflective gratings serve as fundamental optical elements in nanophotonics, with polarization-independent diffraction efficiency being one of the critical parameters for assessing their performance.
Siliang Zhou, Siyu Dong, Tao He, Jingyuan Zhu, Zhanshan Wang, Xinbin Cheng   +5 more
doaj   +1 more source

HanKatherineChemBiologEnviroEngineeringNumericalModelingSub-Wavelength (SupplementaryInformation).pdf

This paper reviews the current progress in mathematical modeling of anti-reflective subwavelength structures. Methods covered include effective medium theory (EMT), finite-difference time-domain (FDTD), transfer matrix method (TMM), the Fourier modal ...
Chang, Chih-Hung, Han, Katherine
core   +4 more sources

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

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.
Charlton, Martin D.B., McCulloch, Douglas, Xu, Jingxiao   +2 more
core   +1 more source

Manufacturing Anti-Reflective Subwavelength Structures on ZnS Using Femtosecond Laser Bessel Beam with Burst Mode

Biomimetics
Increasing the transmittance of zinc sulfide (ZnS) infrared windows can effectively improve the imaging quality of infrared detection. In this study, an anti-reflective subwavelength structure (ASS) was manufactured on ZnS using a femtosecond burst ...
Haoran Wang, Biwen Li, Liangbin Hu, Fan Zhang   +3 more
doaj   +1 more source

Simulation of Two-Dimensional Photonic Crystal Absorption Layers Based on GaAs Matrixes With LiNbO3 Scattering Elements for Solar Cells

International Journal of Chemical Engineering
In this work, a two-dimensional (2D) photonic crystal (PC) absorption layer is designed for solar cells based on bandgap-tunable and low-cost gallium arsenide (GaAs) with lithium niobate (LiNbO3) as scatterers. The effects of scatterer shape, arrangement,
Yu Song, Jiajia Quan, Feng Yuan, Zhijie Bi, Yong Wan   +4 more
doaj   +1 more source

High speed simulation methods for multimode optical devices

Photonic crystals are periodic nanostructures that could affect the motion of photons. Many applications benefit from blending with the structure, such as waveguides, lasers, LEDs, etc.
Xu, Jingxiao
core   +1 more source

Elucidating mechanism of optical cavities in superconducting strip single photon detectors using transmission line and impedance models. [PDF]

Sci Rep
Kutsuma H, Yamashita T.
europepmc   +1 more source

A Review of Machine Learning Applications in Mechanical Metamaterial Design. [PDF]

Materials (Basel)
Turysbekov G, Auyeskhan U, Yankin A, Perveen A, Talamona D.   +4 more
europepmc   +1 more source