Highly Confined In-plane Exciton-Polaritons in Monolayer Semiconductors
arXiv:2010.10457 · doi:10.1088/2053-1583/ab8dd4
Abstract
2D materials support unique excitations of quasi-particles that consist of a material excitation and photons called polaritons. Especially interesting are in-plane propagating polaritons which can be confined to a single monolayer and carry large momentum. In this work, we report the existence of a new type of in-plane propagating polariton, supported on monolayer transition-metal-dicalcogonide (TMD) in the visible spectrum, which has not yet been observed. This 2D in-plane exciton-polariton (2DEP) is described by the coupling of an electromagnetic light field with the collective oscillations of the excitons supported by monolayer TMDs. We expose the specific experimental conditions required for the excitation of the 2DEP and show that these can be created if the TMD is encapsulated with hexagonal-boron-nitride (hBN) and cooled to cryogenic temperatures. In addition, we compare the properties of the 2DEPs with those of surface-plasmons-polaritons (SPPs) at the same spectral range, and find that the 2DEP exhibit over two orders-of-magnitude larger wavelength confinement. Finally, we propose two configurations for the possible experimental observation of 2DEPs.
References in corpus (25)
- Observation of tightly bound trions in monolayer MoS2
- Plasmonics in graphene at infra-red frequencies
- Excitons in atomically thin transition metal dichalcogenides
- Dielectric function, screening, and plasmons in 2D graphene
- Measurement of the optical dielectric function of transition metal dichalcogenide monolayers: MoS2, MoSe2, WS2 and WSe2
- Polaritons in layered 2D materials
- Strong light-matter coupling in two-dimensional atomic crystals
- Dynamical polarization of graphene at finite doping
- Sub-diffractional, volume-confined polaritons in a natural hyperbolic material: hexagonal boron nitride
- Exciton physics and device application of two-dimensional transition metal dichalcogenide semiconductors
- Excitonic linewidth approaching the homogeneous limit in MoS2 based van der Waals heterostructures : accessing spin-valley dynamics
- Graphene on hexagonal boron nitride as a tunable hyperbolic metamaterial
- Evidence of high-temperature exciton condensation in 2D atomic double layers
- High-temperature superfluidity with indirect excitons in van der Waals heterostructures
- Excitonic linewidth and coherence lifetime in monolayer transition metal dichalcogenides
- Signatures of exciton condensation in a transition metal dichalcogenide
- Probing the Ultimate Plasmon Confinement Limits with a Van der Waals heterostructure
- Tuning quantum non-local effects in graphene plasmonics
- An Introduction to Graphene Plasmonics
- Atomically thin mirrors made of monolayer semiconductors
- Far-field Excitation of Single Graphene Plasmon Cavities with Ultra-compressed Mode-volumes
- Interacting polariton fluids in a monolayer of tungsten disulfide
- Arbitrary Bending Plasmonic Light Waves
- Near-unity light absorption in a monolayer WS2 van der Waals heterostructure cavity
- Exciton-polaritons in 2D dichalcogenide layers placed in a planar microcavity: tuneable interaction between two Bose-Einstein condensates
Cited by in corpus (24)
- Quantum Nanophotonics in Two-Dimensional Materials
- Opportunities in Electrically Tunable 2D Materials Beyond Graphene: Recent Progress and Future Outlook
- Prediction of hyperbolic exciton-polaritons in monolayer black phosphorus
- Two-dimensional natural hyperbolic materials: From polaritons modulation to applications
- In-plane anisotropy in biaxial ReS2 crystals probed by nano-optical imaging of waveguide modes
- Excitonic beam steering in an active van der Waals metasurface
- Quantum surface effects in strong coupling dynamics
- In-plane Exciton Polaritons vs Plasmon Polaritons: Nonlocal corrections, confinement and loss
- Two limit cases of twisted hBN bilayers and their excitonic response
- Microscopic modelling of exciton-polariton diffusion coefficients in atomically thin semiconductors
- Polaritonic Quantum Matter
- 2D Semiconductors Superlattices as Hyperbolic Materials
- Trion clustering structure and binding energy in 2D semiconductor materials: Faddeev equations approach
- Impact of substrates and quantum effects on exciton line shapes of 2D semiconductors at room temperature
- Electrically Tunable Interband Collective Excitations in Biased Bilayer and Trilayer Graphene
- The Importance of Pure Dephasing in the Optical Response of Excitons in High-quality van der Waals Heterostructures
- Exciton-polariton mediated interaction between two nitrogen-vacancy color centers in diamond using two-dimensional transition metal dichalcogenides
- Nanometer-scale Cavities for Mid-infrared Radiation via Image Phonon Polariton Resonators
- Guiding light with surface exciton-polaritons in atomically thin superlattices
- Temperature-dependent Optical and Polaritonic Properties of hBN-encapsulated Monolayer TMDs
- Microscopic theory of plasmon-enabled resonant terahertz detection in bilayer graphene
- Excitonic bound states in the continuum in van der Waals heterostructure metasurfaces
- Cryogenic Nano-Imaging of Excitons in a Monolayer Semiconductor
- The Transmission Line Model for 2D Materials and van der Waals Heterostructures