Results 41 to 50 of about 26,576 (254)
Bandwidth control of forbidden transmission gaps in compound structures with subwavelength slits [PDF]
Phase resonances in transmission compound structures with subwavelength slits produce sharp dips in the transmission response. For all equal slits, the wavelengths of these sharp transmission minima can be varied by changing the width or the length of ...
Kuester, Edward F. +3 more
core +2 more sources
Compressive imaging of subwavelength structures: periodic rough surfaces [PDF]
A compressed sensing scheme for near-field imaging of corrugations of relative sparse Fourier components is proposed. The scheme employs random sparse measurement of near field to recover the angular spectrum of the scattered field. It is shown heuristically and numerically that under the Rayleigh hypothesis the angular spectrum is compressible and ...
Fannjiang, Albert, Tseng, Hsiao-Chieh
openaire +3 more sources
Enhanced Conversion Efficiency for Solar Cells With Periodic Grating of Nanowires
The absorption of an amorphous silicon thin film with periodic gratings formed by an array of nanowires with varied heights and different profile shapes is studied.
Ya Han Ye +2 more
doaj +1 more source
Silicon photonics is playing a key role in areas as diverse as high-speed optical communications, neural networks, supercomputing, quantum photonics, and sensing, which demand the development of highly efficient and compact light-processing devices.
Luque-González José Manuel +8 more
doaj +1 more source
Funneling Light Through a Subwavelength Aperture with Epsilon-Near-Zero Materials
Integration of the next generation of photonic structures with electronic and optical on-chip components requires the development of effective methods for confining and controlling light in subwavelength volumes.
D. C. Adams +11 more
core +1 more source
Optical Interaction of a Pair of Nanoholes in Au Film via Surface Plasmon Polaritons
The optical interaction mechanism of a nanohole pair milled in an opaque gold film by means of surface plasmon polaritons (SPPs) propagation is investigated.
M. Janipour +2 more
doaj +1 more source
Molding the flow of light through subwavelength devices [PDF]
Patterning of subwavelength scale structures onto dielectrics allows engineering the local refractive index, dispersion and anisotropy of materials, thus opening new design possibilities which give unprecedented control of light shape in photonic ...
Molina-Fernandez, Iñigo
core
The fundamental guided dispersion characteristics of guided light in a subwavelength dielectric slit channel embedded by two different plasmonic metals are investigated when varying the gap width. As a result, an overall and salient picture of the guided
Ki Young Kim +7 more
core +1 more source
Tilted subwavelength gratings: controlling anisotropy in metamaterial nanophotonic waveguides [PDF]
Subwavelength grating (SWG) structures are an essential tool in silicon photonics, enabling the synthesis of metamaterials with a controllable refractive index.
Cheben, Pavel +8 more
core +1 more source
Subwavelength light bending by metal slit structures
We discuss how light can be efficiently bent by nanoscale-width slit waveguides in metals. The discussion is based on accurate numerical solutions of Maxwell's equations. Our results, using a realistic model for silver at optical wavelengths, show that good right-angle bending transmission can be achieved for wavelengths lambda> 600 nm.
Tae-Woo, Lee, Stephen, Gray
openaire +2 more sources

