Results 41 to 50 of about 12,401 (157)

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

open access: yesPhotonics
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

Numerical Estimation of Bending in Holographic Volume Gratings by Means of RCWA and Deep Learning

open access: yesApplied Sciences
In this paper, we introduce a novel approach to model bending phenomena on holographic volume gratings based on Rigorous Coupled Wave Analysis (RCWA), in which the bending as a phase in the dielectric permittivity expansion is introduced, and the ...
Jaume Colomina-Martínez   +6 more
doaj   +1 more source

Resonance phenomena in one-dimensional grating-based structures

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2017
Enhanced optical transmission through metallic 1-D grating-based structures has been studied using the rigorous coupled wave analysis. The results have shown that optical transmission is determined by waveguide properties of the grating slit, and there ...
I.Ya. Yaremchuk   +2 more
doaj   +1 more source

A proposal of a perfect graphene absorber with enhanced design and fabrication tolerance

open access: yesScientific Reports, 2017
We propose a novel device structure for the perfect absorption of a one-sided lightwavve illumination, which consists of a high-contrast grating (HCG) and an evanescently coupled slab with an absorbing medium (graphene).
Sangjun Lee   +4 more
doaj   +1 more source

A Chirped Subwavelength Grating With Both Reflection and Transmission Focusing

open access: yesIEEE Photonics Journal, 2013
A planar lens composed of a chirped subwavelength grating (CSG) structure with high numerical aperture (NA) was designed and analyzed in this paper. The reflectivity, transmission, and phase were calibrated as a function of the grating dimension using ...
Xiaomin Lv   +7 more
doaj   +1 more source

A broadband multilayered nonpolarization resonant reflector

open access: yesIEEE Photonics Journal, 2015
A nonpolarization reflector constructed by a multilayered 1-D grating structure with a multisubpart profile is proposed and fabricated. Rigorous coupled-wave analysis for multilayered grating structure is adopted to theoretically investigate the ...
L. Huang   +4 more
doaj   +1 more source

Light Diffraction From a Flexible Patterned Layer With Periodically Arranged Dimples

open access: yesIEEE Photonics Journal, 2020
Patterns with periodically arranged dimples are fabricated by an inexpensive soft-imprint lithography technique on a flexible transparent polymer substrate. Excellent diffraction characteristics, with highly intense and fine features, are seen from these
Arpita Haldar, Vijaya Ramarao
doaj   +1 more source

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

open access: yesSoftwareX
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   +2 more
doaj   +1 more source

Rigorous coupled-wave analysis of electromagnetic scattering from lamellar grating with defects

open access: yesOptics Express, 2011
This paper proposes a spectral-domain approach to the electromagnetic scattering problem of lamellar grating with defects. The fields in imperfectly periodic structures have continuous spectra in the wavenumber space, and the main problem of the spectral-domain approach is connected to the discretization scheme on the wavenumber.
Watanabe, Koki   +2 more
openaire   +3 more sources

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