Results 1 to 10 of about 12,290,752 (249)

Subwavelength hybrid plasmonic structures for nonlinear nanophotonics [PDF]

open access: goldLight: Science & Applications, 2021
Plasmonic structures made of a semiconductor-insulator-metal hybrid provide efficient routes for second-harmonic and sum-frequency generation in sub-micrometer structures, which ultimately may boost on-chip integrated plasmonic circuits.
Ann-Katrin U. Michel
doaj   +5 more sources

Multifrequency superscattering from subwavelength hyperbolic structures [PDF]

open access: greenACS Photonics, 2018
5 ...
Chao Qian   +10 more
semanticscholar   +8 more sources

Subwavelength structures for taper waveguides

open access: yesJournal of Physics: Conference Series, 2022
Abstract In Photonic Integrated Circuits (PICs) it is often necessary some sort of mismatch adaptation between waveguides of different cross-sections. There are several instances of such a designing constraint, being the vertical coupling between the PIC and an optical fibre probably the most representative of all examples.
Lourenço, Paulo   +4 more
openaire   +3 more sources

[INVITED] Subwavelength structures for silicon photonics biosensing

open access: yesOptics & Laser Technology, 2019
Abstract Silicon photonic biosensors hold the potential for highly accurate, yet low cost point-of-care devices. Maximizing the sensitivity of the sensing chips while reducing the complexity and cost of the read-out system is pivotal to realize this potential. Here we present an extensive analysis, both from a practical and a theoretical perspective,
Wangüemert-Pérez, J. Gonzalo   +8 more
openaire   +4 more sources

Theoretical investigation of subwavelength structure fabrication based on multi-exposure surface plasmon interference lithography

open access: goldResults in Physics, 2019
We propose a method of fabricating subwavelength structures based on multi-exposure surface plasmon interference lithography. This new nanolithography technique fabricates various subwavelength structures breaking the diffraction limit, which differs ...
Xiangxian Wang   +7 more
doaj   +2 more sources

Soliton frequency shifts in subwavelength structures [PDF]

open access: hybridJournal of Optics, 2015
We investigate the soliton frequency shifts for few-cycle ultrashort laser pulses propagating through resonant media embedded within subwavelength structures, and we elucidate the underlying physics. Full-wave Maxwell?Bloch equations are solved numerically by using the finite-difference time-domain method.
Xiaohong Song   +6 more
openalex   +3 more sources

Formation of broadband antireflective and superhydrophilic subwavelength structures on fused silica using one-step self-masking reactive ion etching. [PDF]

open access: yesSci Rep, 2015
Fused silica subwavelength structures (SWSs) with an average period of ~100 nm were fabricated using an efficient approach based on one-step self-masking reactive ion etching.
Ye X   +7 more
europepmc   +2 more sources

Laser-induced subwavelength structures by microdroplet superlens

open access: yesOptics Express, 2019
Nanoscale patterns on rigid or flexible substrates are of considerable interest in modern nanophotonics and optoelectronics devices. Subwavelength structures are produced in this study by using a laser beam and microdroplets that carry nanoparticles to the deposition substrate. These droplets are generated from an aqueous suspension of nanoparticles by
Ranganathan Kumar   +2 more
openaire   +4 more sources

Competition between subwavelength and deep-subwavelength structures ablated by ultrashort laser pulses

open access: yesOptica, 2017
Femtosecond laser-induced periodic subwavelength and deep-subwavelength structures (SWS; DSWS) have attracted attention due to their subdiffraction resolution of surface and inner volume patterning. Understanding of the richness of laser–matter interaction during formation of SWS and DSWS is another quest which can help to find control for nanoscale ...
Lei Wang   +7 more
openaire   +4 more sources

Spectral scattering characteristics of subwavelength-sized spherical particles near Mie resonance modes probed by tightly focused Terahertz waves [PDF]

open access: yesScientific Reports
The complex dynamics of terahertz (THz) wave scattering by subwavelength-scale structures remain largely unexplored. This article examines the spectral scattering characteristics of subwavelength-sized spherical particles probed by tightly focused THz ...
Da-Hye Choi
doaj   +2 more sources

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