Results 41 to 50 of about 12,290,752 (249)

All-dielectric Mie-resonant metaphotonics

open access: yesComptes Rendus. Physique, 2020
All-dielectric subwavelength structures made of high-refractive-index materials combine a unique set of advantages in comparison with their plasmonic counterparts.
Bonod, Nicolas, Kivshar, Yuri
doaj   +1 more source

Compact Broadband Directional Couplers Using Subwavelength Gratings

open access: yesIEEE Photonics Journal, 2016
We experimentally demonstrate compact broadband directional couplers using subwavelength gratings for silicon-on-insulator wafers with silicon layers of 220 nm.
Yun Wang   +6 more
doaj   +1 more source

A Slot-Based Surface Plasmon-Polariton Waveguide With Long-Range Propagation and Superconfinement

open access: yesIEEE Photonics Journal, 2012
A full-vector spectral element method (SEM) is applied to model and simulate surface plasmon-polariton (SPP) waveguides. Gauss-Lobatto-Legendre (GLL) polynomials are used to construct higher-order basis functions to achieve spectral accuracy.
G. X. Cai   +4 more
doaj   +1 more source

Subwavelength Grating Structures in Silicon‐on‐Insulator Waveguides [PDF]

open access: yesAdvances in Optical Technologies, 2008
First implementations of subwavelength gratings (SWGs) in silicon‐on‐insulator (SOI) waveguides are discussed and demonstrated by experiment and simulations. The subwavelength effect is exploited for making antireflective and highly reflective waveguide facets as well as efficient fiber‐chip coupling structures.
Schmid, Jens   +9 more
openaire   +2 more sources

Waveguide-mode interference lithography technique for high contrast subwavelength structures in the visible region. [PDF]

open access: yesOptics Express, 2014
We explore possibilities of waveguide-mode interference lithography (WMIL) technique for high contrast subwavelength structures in the visible region.
K. Kusaka   +6 more
semanticscholar   +1 more source

Subwavelength Energy Transport Along a Dielectric Nanoparticle Chain in a Metal Slot

open access: yesIEEE Photonics Journal, 2013
Subwavelength energy transportation along a dielectric nanoparticle chain in a metal slot is investigated. It is demonstrated that subwavelength resonance modes with nanoscale confinement could be well achieved in the proposed waveguide, free from the ...
Bing Shen   +5 more
doaj   +1 more source

Experimental Demonstration of Total Absorption over 99% in the Near Infrared for Monolayer‐Graphene‐Based Subwavelength Structures

open access: yes, 2016
optical absorption in experiment for monolayer graphene based subwavelength structures in the near-infrared. Peak absorptions over 99% at wavelength around 1.5 μm with full-width at half maximum (FWHM) about 20 nm are demonstrated from mono layer ...
C. Guo   +7 more
semanticscholar   +1 more source

Keeping Good Sensing Performance of Metal–Dielectric–Metal Waveguides After Coating Treatment

open access: yesIEEE Photonics Journal, 2017
Good sensing performance is observed in metal–dielectric–metal (MDM) waveguides in recent research. However, Ag will be oxidized in air. The oxidization layer makes the sensing performance not as high as before.
Zhihui He   +5 more
doaj   +1 more source

Large-Angle Color Dispersion Based on 2-D Hexagonal Subwavelength Holographic Gratings

open access: yesIEEE Photonics Journal, 2013
This paper presents large-angle color dispersion using a holographically fabricated 2-D subwavelength transmission grating. A dispersion angle of 68° is observed within continuous spectrum dispersion from 360 to 700 nm at an incident angle of 20 &#
Ya-Yun Lo   +4 more
doaj   +1 more source

Inverse-designed ultra-compact star-crossings based on PhC-like subwavelength structures for optical intercross connect.

open access: yesOptics Express, 2017
With the development of highly densified photonic integrated circuits, the optical cross nodes number exhibits dramatically increasing. Not only efficient but also ultra-compact waveguide crossings are required to materialize the full potential of ...
Luluzi Lu   +9 more
semanticscholar   +1 more source

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