Results 111 to 120 of about 2,070,111 (343)
Advanced Optical Materials, EarlyView.Colloidal lithography is a low‐cost, simple and scalable technique to fabricate correlated‐disorder nanostructures for light‐trapping in solar cells. This work investigates the control of polystyrene particle distribution in colloidal lithography, highlighting the importance of particle surface functionalization as well as the ability to tune the ...
Laura de Almeida +5 more
wiley +1 more source
MEMS blazed gratings fabricated using anisotropic etching and oxidation sharpening
AIP Advances, 2020 Micro-electro-mechanical system (MEMS) blazed gratings are the critical optical elements in high resolution micro-spectrometer systems. The MEMS blazed gratings fabricated by conventional methods are not ideal saw-tooth profiles.
Qiuyu Nie, Yiyuan Xie, Fei Chang
doaj +1 more source
Visible metasurfaces and ruled diffraction gratings: a comparison
, 2015 Metasurface based and physical ruling based diffraction gratings function by controlling the phase of light, but the origin of the phase control is different.
Alexander L. Kitt +2 more
semanticscholar +1 more source
Advanced Optical Materials, EarlyView.Here we use a template‐assisted self‐assembly approach of metal colloids onto metal films to produce hybrid plasmonic metasurfaces that integrate nanoparticle‐on‐mirror cavities with periodic metal colloid arrays. The resulting coupling between gap plasmons and grating‐coupled surface plasmon polaritons enables programmable hybrid modes with tailored ...
Afroditi Koutsogianni +6 more
wiley +1 more source
Photoluminescent Color Centers on a Mainstream Silicon Photonic Foundry Platform
Advanced Optical Materials, EarlyView.Silicon photonic chips route and process light efficiently but are inherently inefficient at generating it. Here, bright light‐emitting defects, W‐centers, are written into the silicon layer of finished chips from a mainstream commercial foundry: high‐energy ions are implanted straight through the protective oxide and activated by a 250∘C$^\circ{\rm C}$
Prosper Dellah Allo +7 more
wiley +1 more source
Residual stress evolution analysis in AZ31 friction stir welds using X-Ray and neutron diffraction [PDF]
, 2009 This work was performed as a part of AEROMAG Project"Aeronautica lApplication of Wrought Magnesium" (project N°AST4-CT-2005 -516152) which was supported by the European Union.The authors wish to thank EADS-I W F, Suresnes for Friction Stir Welding,Robert
COMMIN, Loreleï +2 more
core
Controlling multiple diffraction with quasiperiodic gratings
, 2021 Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.Complex diffraction patterns are formed by sophisticated diffraction gratings. However, the methods of synthesizing of such gratings are complicated and resource intensive.
A, M Vyunishev +2 more
core +1 more source
Sub‐Diffraction and Irreversibly Tunable Imaging With Potato Starch Lenses
Advanced Optical Materials, EarlyView.Native potato starch granules function as sustainable birefringent microlenses that enable polarization‐controlled conventional and vortex lensing via spin‐to‐orbital angular momentum conversion. They provide sub‐diffraction and spiral‐contrast imaging, support vortex‐array generation with controllable topological‐charge sign, exhibit irreversible ...
Petr Bouchal +5 more
wiley +1 more source
NanomaterialsThis study investigates the optical properties of diffraction gratings using localized surface plasmon resonance (LSPR) with metal nano-hemispheres. We fabricated metal nano-hemisphere gratings (MNHGS) with Ga, Ag, and Au and examined their wavelength ...
Tomoya Kubota +6 more
doaj +1 more source
Scientific Reports, 2015 Metamaterials, artificial electromagnetic media consisting of periodical subwavelength metal-based micro-structures, were widely suggested for the absorption of terahertz (THz) waves. However, they have been suffered from the absorption of THz waves just
Xiaofei Zang +5 more
semanticscholar +1 more source