2D Semiconductor Nonlinear Plasmonic Modulators
arXiv:1902.04626 · doi:10.1038/s41467-019-11186-w
Abstract
A plasmonic modulator is a device that controls the amplitude or phase of propagating plasmons. In a pure plasmonic modulator, the presence or absence of a pump plasmonic wave controls the amplitude of a probe plasmonic wave through a channel. This control has to be mediated by an interaction between disparate plasmonic waves, typically requiring the integration of a nonlinear material. In this work, we demonstrate the first 2D semiconductor nonlinear plasmonic modulator based on a WSe2 monolayer integrated on top of a lithographically defined metallic waveguide. We utilize the strong coupling between the surface plasmon polaritons, SPPs, and excitons in the WSe2 to give a 73 percent change in transmission through the device. We demonstrate control of the propagating SPPs using both optical and SPP pumps, realizing the first demonstration of a 2D semiconductor nonlinear plasmonic modulator, with a modulation depth of 4.1 percent, and an ultralow switching energy estimated to be 40 aJ.
References in corpus (17)
- Atomically thin MoS2: A new direct-gap semiconductor
- Plasmonics in graphene at infra-red frequencies
- Electrical Control of Two-Dimensional Neutral and Charged Excitons in a Monolayer Semiconductor
- Optical Generation of Excitonic Valley Coherence in Monolayer WSe2
- Ultrafast active plasmonics: transmission and control of femtosecond plasmon signals
- Intrinsic Exciton Linewidth in Monolayer Transition Metal Dichalcogenides
- Strong-coupling of WSe2 in ultra-compact plasmonic nanocavities at room temperature
- Fast pick up technique for high quality heterostructures of bilayer graphene and hexagonal boron nitride
- Probing dark excitons in atomically thin semiconductors via near-field coupling to surface plasmon polaritons
- Atomically thin mirrors made of monolayer semiconductors
- Radiative control of dark excitons at room temperature by nano-optical antenna-tip induced Purcell effect
- Realization of an atomically thin mirror using monolayer MoSe2
- Plasmon-exciton polaritons in 2D semiconductor/metal interfaces
- Giant Modal Gain, Amplified Surface Plasmon Polariton Propagation, and Slowing Down of Energy Velocity in a Metal-Semiconductor-Metal Structure
- Coupling emission from single localized defects in 2D semiconductor to surface plasmon polaritons
- Many-body effects in nonlinear optical responses of 2D layered semiconductors
- Population pulsation resonances of excitons in monolayer MoSe2 with sub 1 μeV linewidth
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- Refractive uses of layered and two-dimensional materials for integrated photonics
- Nonlinear optics in 2D materials: from classical to quantum
- Exciton-Plasmon Coupling in 2D Semiconductors by Surface Acoustic Waves
- Universal Transceivers: Opportunities and Future Directions for the Internet of Everything (IoE)
- Anisotropic complex refractive indices of atomically thin materials: determination of the optical constants of few-layer black phosphorus
- Electron dynamics in a 2D nanobubble: A two-level system based on spatial density