scispace - formally typeset
Open AccessJournal ArticleDOI

Strong Exciton–Plasmon Coupling in MoS2 Coupled with Plasmonic Lattice

TLDR
In this paper, strong exciton-plasmonon coupling was demonstrated in a nanodisk array integrated with monolayer MoS2 via angle-resolved reflectance microscopy spectra.
Abstract
We demonstrate strong exciton–plasmon coupling in silver nanodisk arrays integrated with monolayer MoS2 via angle-resolved reflectance microscopy spectra of the coupled system. Strong exciton–plasmon coupling is observed with the exciton–plasmon coupling strength up to 58 meV at 77 K, which also survives at room temperature. The strong coupling involves three types of resonances: MoS2 excitons, localized surface plasmon resonances (LSPRs) of individual silver nanodisks and plasmonic lattice resonances of the nanodisk array. We show that the exciton–plasmon coupling strength, polariton composition, and dispersion can be effectively engineered by tuning the geometry of the plasmonic lattice, which makes the system promising for realizing novel two-dimensional plasmonic polaritonic devices.

read more

Citations
More filters
Journal ArticleDOI

Plasmonic Surface Lattice Resonances: A Review of Properties and Applications

TL;DR: The basic physical principles and properties of plasmonic surface lattice resonances are described: the width and quality of the resonances, singularities of the light phase, electric field enhancement, etc.
Journal ArticleDOI

Novel Nanostructures and Materials for Strong Light–Matter Interactions

TL;DR: In this paper, the authors present general theoretical formalism describing strong coupling and give an overview of various photonic structures and materials allowing for realization of this regime, including plasmonic and dielectric nanoantennas, novel two-dimensional materials, carbon nanotubes, and molecular vibrational transitions.
Journal ArticleDOI

The rich photonic world of plasmonic nanoparticle arrays

TL;DR: In this paper, the design rules for achieving high-quality optical responses from metal nanoparticle arrays, nanofabrication advances that have enabled their production, and the theory that inspired their experimental realization are described.
Journal ArticleDOI

Coherent Coupling of WS2 Monolayers with Metallic Photonic Nanostructures at Room Temperature.

TL;DR: The unambiguous signature of WS2 monolayer strong coupling in easily fabricated metallic resonators at room temperature suggests many possibilities for combining light-matter hybridization with spin and valleytronics.
Journal ArticleDOI

Strong-coupling of WSe2 in ultra-compact plasmonic nanocavities at room temperature.

TL;DR: Kememann et al. as discussed by the authors showed that room-temperature plasmon strong coupling can be achieved in compact, robust, and easily assembled gold nano-gap resonators at room temperature.
References
More filters
Journal ArticleDOI

Atomically thin MoS2: a new direct-gap semiconductor

TL;DR: The electronic properties of ultrathin crystals of molybdenum disulfide consisting of N=1,2,…,6 S-Mo-S monolayers have been investigated by optical spectroscopy and the effect of quantum confinement on the material's electronic structure is traced.
Journal ArticleDOI

Emerging Photoluminescence in Monolayer MoS2

TL;DR: This observation shows that quantum confinement in layered d-electron materials like MoS(2), a prototypical metal dichalcogenide, provides new opportunities for engineering the electronic structure of matter at the nanoscale.
Journal ArticleDOI

Control of valley polarization in monolayer MoS2 by optical helicity

TL;DR: It is demonstrated that optical pumping with circularly polarized light can achieve complete dynamic valley polarization in monolayer MoS(2) (refs 11, 12), a two-dimensional non-centrosymmetric crystal with direct energy gaps at two valleys.
Journal ArticleDOI

Exciton Binding Energy and Nonhydrogenic Rydberg Series in Monolayer WS 2

TL;DR: Strong but unconventional electron-hole interactions are expected to be ubiquitous in atomically thin materials using a microscopic theory in which the nonlocal nature of the effective dielectric screening modifies the functional form of the Coulomb interaction.
Related Papers (5)