Results 11 to 20 of about 24,104,792 (158)

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   +2 more sources

Performance analysis of rigorous coupled-wave analysis and its integration in a coupled modeling approach for optical simulation of complete heterojunction silicon solar cells

open access: yesBeilstein Journal of Nanotechnology, 2018
A variety of light management structures have been introduced in solar cells to improve light harvesting and further boost their conversion efficiency. Reliable and accurate simulation tools are required to design and optimize the individual structures ...
Ziga Lokar   +3 more
doaj   +2 more sources

Q-LEAP: Millisecond Hyperdimensional Optimization for Full-Spectrum Optical Metamaterials. [PDF]

open access: yesAdv Sci (Weinh)
Q‐LEAP integrates physics‐informed residual machine learning with factorization‐machine‐encoded quantum annealing to design full‐spectrum optical metamaterials. It explores a 2108 design space and, in a single 2.56 ms annealing step, reaches 85.83% of the theoretical FoM limit, enabling selective 5‐8 µm emission with 3–5 and 8–14 µm suppression and ∼40×
Guo Z, Wu Y, Guo Y, Ju S.
europepmc   +2 more sources

Wave Climate, Geotechnical and Geophysical Analysis of the Tillamook Jetties [PDF]

open access: yes
Wave Energy AS (WE) is an ocean energy company from Norway established to develop, test, market and commercialize the patented SSG™ wave energy converter technology.
Wave Energy AS, Bakke, Monica
core   +6 more sources

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

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

Two‐dimensional synthetic aperture imaging of targets behind reinforced concrete walls

open access: yesIET Radar, Sonar & Navigation, 2022
Synthetic aperture imaging of targets closely behind a reinforced concrete wall, modelled by a periodic structure by using the proper Green's function (GF) of the structure, is studied.
Alireza Ghobadi‐Rad   +2 more
doaj   +1 more source

Study of the dynamic formation of transmission gratings recorded in photopolymers and holographic polymer-dispersed liquid crystals [PDF]

open access: yes, 2004
Local and nonlocal models for the diffusion of photopolymers are applied to the dynamic formation of transmission gratings recorded in photopolymers and holographic polymer-dispersed liquid crystals (H-PDLCs). We retrieve the main parameters of H-PDLCs (
Kaiser, Jean-Luc   +5 more
core   +1 more source

Selective Properties of Mid-Infrared Tamm Phonon-Polaritons Emitter with Silicon Carbide-Based Structures

open access: yesMicromachines, 2022
Electromagnetic (EM) absorbers and emitters have attracted much interest because of their versatile applications. A photonic heterostructure composed of silicon carbide (SiC) layer/germanium (Ge) cavity/distributed Bragg reflector (DBR) has been proposed.
Chengxuan Gong, Gaige Zheng
doaj   +1 more source

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

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