Interlayer Exciton Laser with Extended Spatial Coherence in an Atomically-Thin Heterostructure
arXiv:1901.00598 · doi:10.1038/s41586-019-1779-x
Abstract
Two-dimensional semiconductors have emerged as a new class of materials for nanophotonics for their strong exciton-photon interaction and flexibility for engineering and integration. Taking advantage of these properties, we engineer an efficient lasing medium based on dipolar interlayer excitons, in rotationally aligned atomically thin heterostructures. Lasing is measured from a transition metal dichalcogenide hetero-bilayer integrated in a silicon nitride grating resonator. A sharp increase in the spatial coherence of the emission was observed across the lasing threshold. The work establishes interlayer excitons in two-dimensional heterostructures as a silicon-compatible coherent medium. With electrically tunable light-matter interaction strength and long-range dipolar interactions, these interlayer excitons promise both applications to low-power, ultrafast laser and modulators and rich many-body quantum phenomena.
References in corpus (18)
- Atomically thin MoS2: A new direct-gap semiconductor
- Van der Waals heterostructures
- Atomically thin p-n junctions with van der Waals heterointerfaces
- Moiré Excitons in Van der Waals Heterostructures
- Signatures of moiré-trapped valley excitons in MoSe/WSe heterobilayers
- Observation of Moiré Excitons in WSe2/WS2 Heterostructure Superlattices
- Strong interlayer coupling in van der Waals heterostructures built from single-layer chalcogenides
- Moiré excitons: from programmable quantum emitter arrays to spin-orbit coupled artificial lattices
- High-temperature superfluidity with indirect excitons in van der Waals heterostructures
- Intrinsic Transport Properties of Electrons and Holes in Monolayer Transition Metal Dichalcogenides
- Interlayer Exciton Optoelectronics in a 2D Heterostructure p-n Junction
- Room-temperature Continuous-wave Lasing from Monolayer Molybdenum Ditelluride with a Silicon Nanobeam Cavity
- Theory of optical absorption by interlayer excitons in transition metal dichalcogenide heterobilayers
- Photonic-Crystal Exciton-Polaritons in Monolayer Semiconductors
- Spatial Coherence of a Polariton Condensate
- Highly Valley-Polarized Singlet and Triplet Interlayer Excitons in van der Waals Heterostructure
- Spatial coherence and stability in a disordered organic polariton condensate
- Adiabatic preparation of a cold exciton condensate
Cited by in corpus (27)
- Applications of Bound States in the Continuum in Photonics
- Strongly correlated excitonic insulator in atomic double layers
- Enhanced Light-Matter Interaction in Two-Dimensional Transition Metal Dichalcogenides
- Ultralow Threshold Polariton Condensate in a Monolayer Semiconductor Microcavity at Room Temperature
- Guide to optical spectroscopy of layered semiconductors
- Moiré-trapped interlayer trions in a charge-tunable WSe/MoSe heterobilayer
- Spatial coherence of room-temperature monolayer WSe exciton-polaritons in a trap
- Quantum phase transitions of tri-layer excitons in atomically thin heterostructures
- Twist Angle Tuning of Moiré Exciton Polaritons in van der Waals Heterostructures
- Lasing of Moiré Trapped MoSe/WSe Interlayer Excitons Coupled to a Nanocavity
- Coupling interlayer excitons to whispering gallery modes in van der Waals heterostructures
- A room-temperature moiré interlayer exciton laser
- Extended spatial coherence of interlayer excitons in MoSe/WSe heterobilayers
- Engineering photonic environments for two-dimensional materials
- Moiré-induced optical non-linearities: Single and multi-photon resonances
- Spatiotemporal Imaging of Thickness-Induced Band Bending Junctions
- Organic room-temperature polariton condensate in a higher-order topological lattice
- Magnetic Exciton-Polariton with Strongly Coupled Atomic and Photonic Anisotropies
- Controlled Interlayer Exciton Ionization in an Electrostatic Trap in Atomically Thin Heterostructures
- Atomically-Thin Transition Metal Dichalcogenide Nanolasers: Challenges and Opportunities
- Trapping Interlayer Excitons in van der Waals Heterostructures by Potential Arrays
- Revisiting the Siegert relation for the partially coherent regime of nanolasers
- Probing the formation of dark interlayer excitons via ultrafast photocurrent
- Intrinsic Electronic Properties of BN Encapsulated, van der Waals Contacted MoSe FETs
- Electrically tunable MoSe/WSe heterostructure-based quantum dot
- Light-matter interactions in layered materials and heterostructures: from moiré physics and magneto-optical effects to ultrafast dynamics and hybrid meta-photonics
- Trion transfer in mixed-dimensional heterostructures