Results 71 to 80 of about 3,858 (198)

Orthogonal mode couplers for plasmonic chip based on metal–insulator–metal waveguide for temperature sensing application

Scientific Reports
In this work, a plasmonic sensor based on metal–insulator–metal (MIM) waveguide for temperature sensing application is numerically investigated via finite element method (FEM).
Muhammad Ali Butt, Ryszard Piramidowicz
doaj   +1 more source

Atto-Joule, high-speed, low-loss plasmonic modulator based on adiabatic coupled waveguides

Nanophotonics, 2018
In atomic multi-level systems, adiabatic elimination (AE) is a method used to minimize complicity of the system by eliminating irrelevant and strongly coupled levels by detuning them from one another.
Dalir Hamed, Mokhtari-Koushyar Farzad, Zand Iman, Heidari Elham, Xu Xiaochuan, Pan Zeyu, Sun Shuai, Amin Rubab, Sorger Volker J., Chen Ray T.   +9 more
doaj   +1 more source

Propagation Characteristics of Multilayer Hybrid Insulator-Metal-Insulator and Metal-Insulator-Metal Plasmonic Waveguides

Advanced Electromagnetics, 2014
Propagation characteristics of symmetrical and asymmetrical multilayer hybrid insulator-metal-insulator (HIMI) and metal-insulator-metal (HMIM) plasmonic slab waveguides are investigated using the transfer matrix method.
M. Talafi Noghani, M. H. Vadjed Samiei
doaj   +1 more source

Controlling Collective Quasiparticle Dynamics Beyond Decoherence in Topological Interfaces

Laser &Photonics Reviews, EarlyView.
Gold nanoparticles placed above a deformed honeycomb plasmonic crystal couple to a chiral topological interface mode. The pseudospin‐split bands ψ+/ ψ− encode spin‐momentum locking, so emitters radiate directionally along the domain wall and share a common phase.
Fatemeh Davoodi
wiley   +1 more source

High‐Efficiency Graphene‐Silicon Slot‐Waveguide Microring Modulator at 1.5 and 2 µm Wavelength Bands

Laser &Photonics Reviews, EarlyView.
E/O modulators typically face a trade‐off between bandwidth and modulation efficiency. An integrated E/O modulator is presented that simultaneously achieves wideband, large bandwidth, and high modulation efficiency operation by embedding a partially overlapped double‐layer graphene on a compact silicon slot‐waveguide microring resonator.
Chao Luan, Deming Kong, Yong Liu, Yunhong Ding, Hao Hu   +4 more
wiley   +1 more source

Design of a Symmetric Hybrid Graphene Plasmonic Waveguide with High Confinement and Efficiency [PDF]

فیزیک کاربردی ایران
Plasmons in graphene have unusual properties and offer promising prospects for plasmonic applications covering a wide frequency range from terahertz to the visible spectrum, and many studies have been conducted on plasmon modes in graphene.
Mohammad Reza Jafari, Akbar Asadi, Somaye Karimi   +2 more
doaj   +1 more source

Efficient and Tunable Narrowband Second‐Harmonic Generation by a Large‐Area Etchless Lithium Niobate Metasurface

Laser &Photonics Reviews, EarlyView.
An etchless lithium niobate (LN) metasurface with a slanted periodic TiO2 grating enables efficient and narrowband second‐harmonic generation (SHG) thanks to the light confinement in the LN film granted by quasi‐bound‐state‐in‐the‐continuum (q‐BIC) modes.
Yaping Hou, Yigong Luan, Yu Fan, Alfonso Nardi, Attilio Zilli, Bobo Du, Jinyou Shao, Marco Finazzi, Chunhui Wang, Lei Zhang, Michele Celebrano   +10 more
wiley   +1 more source

Mach-Zehnder Interferometer Refractive Index Sensor Based on a Plasmonic Channel Waveguide

Sensors, 2017
A Mach-Zehnder interferometer based on a plasmonic channel waveguide is proposed for refractive index sensing. The structure, with a small physical footprint of 20 × 120 μm2, achieved a high figure of merit of 294.
Da Eun Lee, Young Jin Lee, Eunso Shin, Soon-Hong Kwon   +3 more
doaj   +1 more source

Tunable Terahertz Generation in Dispersion‐Engineered ZnTe Waveguides

Laser &Photonics Reviews, EarlyView.
A dispersion‐engineered Zinc Telluride (ZnTe) slab waveguide platform enables tunable and efficient guided‐wave terahertz (THz) generation through modal phase matching. By tailoring the optical and THz modal dispersion, coherent THz emission is achieved across 0.1–3 THz.
Arun Jana, Cormac McDonnell, Mai Tal, Anastasiya Reveguk, Amit Kohn, Tal Ellenbogen   +5 more
wiley   +1 more source

Ultracompact vanadium dioxide dual-mode plasmonic waveguide electroabsorption modulator

Nanophotonics, 2013
Subwavelength modulators play an indispensable role in integrated photonic-electronic circuits. Due to weak light-matter interactions, it is always a challenge to develop a modulator with a nanometer scale footprint, low switching energy, low insertion ...
Ooi Kelvin J.A., Bai Ping, Chu Hong Son, Ang Lay Kee   +3 more
doaj   +1 more source