Coherent exciton-exciton interactions and exciton dynamics in a MoSe\textsubscript{2}/WSe\textsubscript{2} heterostructure

Abstract

Coherent coupling between excitons is at the heart of many-body interactions with transition metal dichalcogenide (TMD) heterostructures as an emergent platform for the investigation of these interactions. We employ multi-dimensional coherent spectroscopy on monolayer MoSe\textsubscript{2}/WSe\textsubscript{2} heterostructures and observe coherent coupling between excitons spatially localized in monolayer MoSe${}_2$ and WSe${}_2$. Through many-body spectroscopy, we further observe the absorption state arising from free interlayer electron-hole pairs. This observation yields a spectroscopic measurement of the interlayer exciton binding energy of about 250 meV.

References in corpus (20)

• Ultrafast Charge Transfer in Atomically Thin MoS2/WS2 Heterostructures
• Observation of Long-Lived Interlayer Excitons in Monolayer MoSe2-WSe2 Heterostructures
• Solar-energy conversion and light emission in an atomic monolayer p-n diode
• Signatures of moiré-trapped valley excitons in MoSe${}_2$/WSe${}_2$ heterobilayers
• Moiré excitons: from programmable quantum emitter arrays to spin-orbit coupled artificial lattices
• Intrinsic Exciton Linewidth in Monolayer Transition Metal Dichalcogenides
• Long-lived direct and indirect interlayer excitons in van der Waals heterostructures
• Evidence for Fast Interlayer Energy Transfer in MoSe2/WS2 Heterostructures
• Ultrafast transition between exciton phases in van der Waals heterostructures
• Twist Angle Dependent Interlayer Exciton Lifetimes in van der Waals Heterostructures
• Probing the inter-layer exciton physics in a MoS${}_2$/MoSe${}_2$/MoS${}_2$ van der Waals heterostructure
• Coherent Electronic Coupling in Atomically Thin MoSe2
• Interlayer excitons in MoSe${}_2$/WSe${}_2$ heterostructures from first-principles
• Coherent and Incoherent Coupling Dynamics between Neutral and Charged Excitons in Monolayer MoSe2
• Exciton-Trion Coherent Interactions in a CdTe/CdMgTe Quantum Well
• Coherent Excitonic Coupling in an Asymmetric Double InGaAs Quantum Well Arises from Many-Body Effects
• Enhanced interlayer neutral excitons and trions in trilayer van der Waals heterostructures
• Controlling Coherent Quantum Dot Interactions
• Encapsulation Narrows Excitonic Homogeneous Linewidth of Exfoliated MoSe${}_2$ Monolayer
• Valley two-qubit system in a MoS${}_2$-monolayer gated double quantum dot

Cited by in corpus (7)

• Time-domain observation of interlayer exciton formation and thermalization in a MoSe${}_2$/WSe${}_2$ heterostructure
• Momentum-Resolved Exciton Coupling and Valley Polarization Dynamics in Monolayer WS${}_2$
• Imaging dynamic exciton interactions and coupling in transition metal dichalcogenides
• Rapid multiplex ultrafast nonlinear microscopy for material characterization
• Exciton-exciton Interactions -- A Quantitative Comparison Between Complimentary Phenomenological Models
• Electrically tunable MoSe${}_2$/WSe${}_2$ heterostructure-based quantum dot
• Variational and field-theoretical approach to exciton-exciton interactions and biexcitons in semiconductors