Results 101 to 110 of about 20,376 (211)

Topological Photonic Devices and Circuits at Terahertz Frequencies

Laser &Photonics Reviews, EarlyView.
This review examines how 3D topological insulators and emerging topological photonic phases enable robust, low‐loss and defect‐immune terahertz devices. Fundamental properties, device implementations and topological transport mechanisms are surveyed, revealing new opportunities for reconfigurable, high‐performance THz components and scalable ...
Samane Kalhor, Srabani Kar, Ranjan Singh, Kaveh Delfanazari   +3 more
wiley   +1 more source

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

, 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, Fang, Nicholas X., Fung, Kin Hung, Kumar, Anshuman, Low, Tony   +4 more
core   +2 more sources

Resonant tunneling of surface plasmon-polaritons

Optics Express, 2007
The tunneling of surface plasmon-polaritons (SPPs) across an interruption in the metallic film supporting them is numerically investigated in details. Both non-symmetrical and symmetrical geometries are considered. A very high tunneling efficiency is calculated for the long-range surface plasmon in the symmetrical geometry, with an amplitude ...
Sergei, Sidorenko, Olivier J F, Martin
openaire   +2 more sources

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

Graphene-Hexagonal Boron Nitride Heterostructure as a Tunable Phonon–Plasmon Coupling System

Crystals, 2017
The layered van der Waals (vdW) heterostructure, assembled from monolayer graphene, hexagonal boron nitride (h-BN) and other atomic crystals in various combinations, is emerging as a new paradigm with which to attain desired electronic and optical ...
Sheng Qu, Hongxia Liu, Lu Dong, Lei Wu, Congcong Ma, Shulong Wang   +5 more
doaj   +1 more source

Guided Surface Plasmon Mode of Semicircular Cross Section Silver Nanoridges

, 2012
Tightly confined plasmon waveguide modes supported by semicircular cross section top silver nanoridges are investigated in this paper. Mode field profiles, dispersion curves, propagation distances, confinement factors, and figure-of-merits of ...
Adato, Adato, Adato, Barnes, Berini, Berini, Berini, Berini, Boardman, Boltasseva, Bozhevolnyi, Buckley, Charbonneau, Cho, Cleary, Craig, de Waele, Degiron, Dintinger, Economou, Feigenbaum, Feigenbaum, Gordon, Gramotnev, Guo, Guo, Holmgaard, Hu, Johnson, Junpeng Guo, Krasavin, Krasavin, Lamprecht, Moreno, Moreno, Novotny, Ogawa, Oulton, Pan, Pan, Pile, Pile, Reinhardt, Saleh, Sarid, Satuby, Soref, Stegeman, Steinberger, Sun, Vesseur, Yan, Yang, Zeyu Pan, Zia, Zia   +55 more
core   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, Volume 36, Issue 27, 2 April 2026.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Metallic nanostructures inclusion to improve energy harvesting in silicon

Optical Materials: X
New phenomena have been discovered at the nanoscale that allow us to manipulate light and design devices. Evanescent waves such as Surface Plasmon Polaritons are excited in dielectric–metal interfaces and propagate in the metal.
Ricardo A. Marques Lameirinhas, Catarina P. Correia V. Bernardo, João Paulo N. Torres, António Baptista, Maria João Marques Martins   +4 more
doaj   +1 more source

Hyperbolic-metamaterial waveguides for long-range propagation

, 2017
We study optical waveguides that include layers of materials and metamaterials with hyperbolic dispersion (HMM). We consider long-range regime at the dielectric-HMM interface in different waveguide geometries (single interface or symmetric cladding with ...
Babicheva, Viktoriia E.
core   +1 more source

Scalable Thermal Engineering via Femtosecond Laser‐Direct‐Written Phononic Nanostructures

Advanced Functional Materials, Volume 36, Issue 27, 2 April 2026.
This study demonstrates that femtosecond laser‐induced periodic surface structures (fs‐LIPSS) can function as phononic metasurfaces, reducing thermal conductivity below the plain thin‐film limit. Phonon Monte Carlo analysis reveals that the periodic structures restrict phonon mean free paths.
Hiroki Hamma, Roman Anufriev, Kazuyoshi Fushinobu, Masahiro Nomura, Byunggi Kim   +4 more
wiley   +1 more source