Results 31 to 40 of about 1,677 (197)

A Photolithography Process Design for 5 nm Logic Process Flow

open access: yesJournal of Microelectronic Manufacturing, 2019
With the introduction of EUV lithography, the photolithographic process in 5 nm logic process can be simplified to use mostly single exposure method. In a typical 5 nm logic process, the contact-poly pitch (CPP) is 44-50 nm, the minimum metal pitch (MPP)
Qiang Wu   +3 more
doaj   +1 more source

Study on Two-Dimensional Exit Pupil Expansion for Diffractive Waveguide Based on Holographic Volume Grating

open access: yesApplied Sciences, 2023
Diffraction gratings are becoming a preferred option for waveguide head-mounted in–out coupling devices due to their flexible optical properties and small size and light weight.
Mianhui Weng   +3 more
doaj   +1 more source

The numerical analysis of RCWA and its use in simulating thin-film solar cells

open access: yes, 2020
Monk, PeterThe ability to rapidly compute the electromagnetic field inside a thin-film solar cell given a set of constitutive parameters of the cell is an important tool in the field of solar cell optimization.
Civiletti, Benjamin J.
core   +1 more source

Efficacité de la FFF sur la RCWA et la méthode différentielle appliquée à la diffraction d'un réseau métallique sinusoïdal

open access: yes, 2018
National audienceLa diffraction de la lumière dans des structures périodiques est un sujet important pour différents types d’applications (Spectrométrie, filtrage, photovoltaïque …).
Benech, Pierre   +4 more
core   +4 more sources

Normal vector method for the RCWA with automated vector field generation

open access: yesOptics Express, 2008
Early formulations of the RCWA yield, implicated by the erroneous application of factorization rules to discrete Fourier transformations, poor convergence in certain cases. An explanation for this finding and an approach to overcome the problem for crossed gratings was first given by Li [J. Opt. Soc. Am. A 13, 1870 (1996) and 14, 2758 (1997)].
Peter, Götz   +4 more
openaire   +2 more sources

Numerical Modeling of Sub-Wavelength Anti-Reflective Structures for Solar Module Applications

open access: yesNanomaterials, 2014
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 ...
Katherine Han, Chih-Hung Chang
doaj   +1 more source

A 1 × 2 Two-Dimensional Slanted Grating Based on Double-Layer Cylindrical Structure

open access: yesApplied Sciences, 2023
Diffraction gratings play an increasingly important role in various planar optical systems, such as near-eye display systems for virtual reality (VR) and augmented reality (AR). The slanted gratings have more advantages than other elements.
Yuda Chen   +5 more
doaj   +1 more source

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

open access: yesNanophotonics, 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   +12 more
doaj   +1 more source

Effective spectral optical functions of lamellar nanogratings [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2006
Spectral properties of lamellar sub-wavelength gratings (nanogratings) are described by effective medium approximation (EMA). Analytical spectral formulae for ordinary and extraordinary effective optical functions are derived for nanogratings consisting ...
Foldyna Martin   +4 more
doaj   +1 more source

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

open access: yesSolids, 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   +5 more
doaj   +1 more source

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