Results 31 to 40 of about 12,401 (157)
Bandpass filters based on integrated aperture‐ and gap‐coupled discontinuities
IET Communications, 2022 An electromagnetic coupling mechanism is discussed for distributed‐element aperture‐ and gap‐coupled discontinuities based on rigorous lumped‐element equivalent circuit analysis.
Amir Nosrati, Mahmoud Mohammad‐Taheri
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Design and Analysis of High-Index-Contrast Gratings Using Coupled Mode Theory
IEEE Photonics Journal, 2010 We analyze high-refractive-index-contrast subwavelength grating structures using truncated coupled mode theory (CMT). CMT not only provides physical insight into the role of each mode in the overall response but also allows for improved design.
Aftab Ahmed +2 more
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A 1 × 2 Two-Dimensional Slanted Grating Based on Double-Layer Cylindrical Structure
Applied 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
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Graphene-Based Cylindrical Pillar Gratings for Polarization-Insensitive Optical Absorbers
Applied Sciences, 2019 In this study, we present a two-dimensional dielectric grating which allows achieving high absorption in a monolayer graphene at visible and near-infrared frequencies.
Muhammad Fayyaz Kashif +9 more
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IEEE Photonics Journal, 2014 We present bifunctional nanostructured (NS) coverglasses with enhanced transmittance and self-cleaning function for improving the efficiency of a photovoltaic (PV) module with an InGaP/GaAs/Ge triple-junction solar cell.
Chan Il Yeo +4 more
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Polarization-Independent Filter Based on 2-D Crossed Grating Under Oblique Incidence
IEEE Photonics Journal, 2018 The existing polarization-insensitive filters based on two dimensional (2-D) grating are mostly under normal incidence. However, in filtering optical devices, the normal incidence regime is usually avoided because it requires the use of beam separators ...
Danyan Wang +2 more
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Reconciling measured scattering response of 3D metamaterials with simulation
EPJ Applied Metamaterials, 2015 Membrane projection lithography is used to create 3-dimensional unit cells in a silicon matrix decorated with metallic inclusions. The structures show pronounced resonances in the 4–16 µm wavelength range and demonstrate direct coupling to the magnetic ...
Adomanis Bryan M. +2 more
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Physical properties of the tunic in the pinkish-brown salp Pegea confoederata (Tunicata: Thaliacea)
Zoological Letters, 2018 Background Invisibility in the water column is a crucial strategy for gelatinous zooplanktons in avoiding detection by visual predators, especially for animals distributed in the euphotic zone during the daytime; i.e., surface dwellers that do not ...
Daisuke Sakai +3 more
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Scientific Reports, 2023 Rectangular wave-shaped surface-relief plasmonic gratings (RSR-PGs) have been fabricated from a hybrid polymer by employing a simple nanoimprint photocuring lithography technique using a silicon template, followed by gold nanolayer metallization on top ...
Rahmat Hidayat +5 more
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Zoological LettersBackground The transparent jellyfish body is often difficult to see underwater, as its refractive index is similar to that of seawater, resulting in a low light reflectance on the body surface. Nevertheless, the outlines of jellyfish can be recognized by
Euichi Hirose +4 more
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