Results 61 to 70 of about 220,487 (206)

Direct Characterization of Plasmonic Slot Waveguides and Nanocouplers [PDF]

open access: yesNano Letters, 2014
We demonstrate the use of amplitude- and phase-resolved near-field mapping for direct characterization of plasmonic slot waveguide mode propagation and excitation with nanocouplers in the telecom wavelength range. We measure mode's propagation length, effective index and field distribution and directly evaluate the relative coupling efficiencies for ...
Andrei Andryieuski   +5 more
openaire   +4 more sources

High‐Speed Integrated Graphene‐Silicon Slot‐Waveguide Electro‐Absorption Modulator at 2 and 1.5 µm Wavebands

open access: yesLaser &Photonics Reviews, EarlyView.
A high‐speed, efficient, robust, and compact 2‐μm$\mathrm{\mu}\mathrm{m}$ waveband E/O absorption modulator based on a graphene‐silicon slot waveguide is demonstrated. This work represents a significant advancement towards the realization of high‐speed integrated E/O modulators for optical communication systems operating at the 2‐μm$\mathrm{\mu}\mathrm{
Chao Luan   +3 more
wiley   +1 more source

Integrated Waveguide Slot Antennas

open access: yes, 2004
Waveguide slot antennas integrated on microwave laminate are presented, and single and dual slot antennas are described, which operate at 10 ...
Farrall, A.J., Young, Paul R.
core   +1 more source

Intelligent Continuum Micromachines in Complex Confined Spaces

open access: yesSmartBot, EarlyView.
The cover depicts a conceptual design for an intelligent continuum micromachine entering a target capsule used in fusion‐energy research through its slender gas‐fill tube. By combining route‐adaptive deformation, embedded sensing, and a functional end effector, the robot could inspect hidden defects, assess local conditions, and support localized ...
Huayang Sai   +7 more
wiley   +1 more source

A Novel Scheme to Excite SOI Slot Waveguide Mode

open access: yes, 2017
This paper presents a novel robust method to excite a slot waveguide mode. We experimentally demonstrate the fundamental slot-mode excitation in a Si slot-waveguide ring resonator.
Shankar Kumar Selvaraja   +5 more
core   +1 more source

3D Printed Waveguide Slot Array Antennas

open access: yesIEEE Access, 2016
Waveguide slot array antennas can have high gain, since the power distribution network (waveguide) has low loss, enabling a large aperture size. Rapid response to requirements for frequency, gain, and skew angle inspired a search for an alternative to ...
Gregory Peter Le Sage
doaj   +1 more source

Synergic Magnetic–Dielectric Ni/Co‐Anchored Carbon Aerogels From Cellulose Nanofiber Scaffolds for Electromagnetic Shielding, Infrared Stealth, and Secure RFID Technologies

open access: yesSmall, EarlyView.
Ultralight Ni/Co‐anchored nanoporous carbon aerogels derived from TEMPO‐oxidized cellulose nanofibers integrate absorption‐dominated EMI shielding with infrared stealth. The hierarchical porous network provides dielectric/magnetic losses and suppresses thermal signatures.
Fan Zhang   +4 more
wiley   +1 more source

Substrate Integrated Waveguide Antenna Applications [PDF]

open access: yes, 2015
The research objective of this thesis is to provide a better solution for signal interference and reduce the size of waveguide antenna. The background investigations of different waveguide fabrication technologies and switch control methods are detailed ...
WU, LIANG
core  

Chiral Plasmonic Filtering in Silver Nanowires via Point‐Defect‐Induced Mode Conversion and Interference

open access: yesNanophotonics, Volume 15, Issue 21, 12 November 2026.
A single nanogroove milled into a silver nanowire is shown to function as an on‐chip chiral plasmonic filter. The point defect selectively converts and interferes with guided plasmonic modes, enabling handedness‐dependent transmission under ± 45° polarized excitation.
Huijie Wang   +7 more
wiley   +1 more source

Ultrabroadband, Subvolt Thin‐Film Lithium Niobate Modulators via Codesigned Optical and RF Slow‐Wave Structures

open access: yesAdvanced Photonics Research, Volume 7, Issue 10, October 2026.
In this work, thin‐film lithium niobate Mach–Zehnder modulators are realized using codesigned slow‐light optical waveguides and inductively loaded RF electrodes. This dual slow‐wave engineering optimizes velocity matching, achieving Vπ·L = 0.3 V cm, bandwidths up to 200 GHz, Vπ ≤ 1 V, and short device lengths, offering an efficient solution for high ...
Zobeyde Dadkhah   +2 more
wiley   +1 more source

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