Results 61 to 70 of about 12,139 (172)

Dual-Spectral Plasmon-Induced Transparent Terahertz Metamaterial with Independently Tunable Amplitude and Frequency

open access: yesNanomaterials, 2021
A bifunctional tunable metamaterial composed of pattern metal structure, graphene, and strontium titanate (STO) film is proposed and studied numerically and theoretically.
Tong Wu   +7 more
doaj   +1 more source

Tunable light-matter interaction and the role of hyperbolicity in graphene-hBN system

open access: yes, 2015
Hexagonal boron nitride (hBN) is a natural hyperbolic material which can also accommodate highly dispersive surface phonon-polariton modes. In this paper, we examine theoretically the mid-infrared optical properties of graphene-hBN heterostructures ...
Avouris, Phaedon   +4 more
core   +2 more sources

Tunable slow light effect based on dual plasmon induced transparency in terahertz planar patterned graphene structure

open access: yesResults in Physics, 2019
We have studied a simple novel graphene ribbon structure. A very excellent and prominent dual graphene plasmon induced transparency phenomenon could be achieved by the destructive interference resulted from the excited plasmonic modes in terahertz band ...
Mingzhuo Zhao   +6 more
doaj   +1 more source

Slow light in dielectric composite materials of metal nanoparticles

open access: yes, 2012
We propose a method for slowing down light pulses by using composites doped with metal nanoparticles. The underlying mechanism is related to the saturable absorption near the plasmon resonance in a pump-probe regime, leading to strong dispersion of the ...
Herrmann, Joachim   +2 more
core   +1 more source

Plasmon-induced transparency in a single multimode stub resonator

open access: yesOptics Express, 2014
We investigate electromagnetically induced transparency (EIT)-like effect in a metal-dielectric-metal (MDM) waveguide coupled to a single multimode stub resonator. Adjusting the geometrical parameters of the stub resonator, we can realize single or double plasmon-induced transparency (PIT) windows in the plasmonic structure.
Guangtao, Cao   +5 more
openaire   +2 more sources

Optical forces in nanowire pairs and metamaterials

open access: yes, 2010
We study the optical force arising when isolated gold nanowire pairs and metamaterials with a gold nanowire pair in the unit cell are illuminated with laser radiation.
Chu   +35 more
core   +1 more source

Liquid crystal terahertz modulator with plasmon-induced transparency metamaterial

open access: yesOptics Express, 2018
An electrically tunable terahertz (THz) modulator with large modulation depth and low insertion loss is performed with liquid crystal (LC) metamaterial. The modulation depth beyond 90% and insertion loss below 0.5 dB are achievable at normal incidence by exploiting plasmon-induced transparency (PIT) effect.
Jing Wang   +7 more
openaire   +2 more sources

Plasmonic nanoantennas as integrated coherent perfect absorbers on SOI waveguides for modulators and all-optical switches

open access: yes, 2013
The performance of plasmonic nanoantenna structures on top of SOI wire waveguides as coherent perfect absorbers for modulators and all-optical switches is explored.
Bruck, Roman, Muskens, Otto L.
core   +1 more source

A single-photon transistor using nano-scale surface plasmons

open access: yes, 2007
It is well known that light quanta (photons) can interact with each other in nonlinear media, much like massive particles do, but in practice these interactions are usually very weak.
Anders S. Sørensen   +44 more
core   +1 more source

Tailoring the plasmon-induced transparency resonances in terahertz metamaterials

open access: yesOptics Express, 2017
We experimentally demonstrate that a coupled metamaterial composed of sub-wavelength split-ring-resonators (SRRs) and closed-ring-resonators (CRRs) can tailor the plasmon-induced-transparency (PIT) resonances when the external electric field is parallel to the gaps of SRRs.
Meng, Liu   +6 more
openaire   +2 more sources

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