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14 papers
Fluctuation imaging of disorder in monolayer semiconductors
Tom T. C. Sistermans, Rasmus H. Godiksen, Sara A. Elrafei +1
Monolayer semiconductors hold great potential for nanoscale electronics, optoelectronics, and photonics. Excitons dominate their optical properties. As their electric fields extend…
Photonics in Flatland: Challenges and Opportunities for Nanophotonics with 2D Semiconductors
Ali Azimi, Julien Barrier, Angela Barreda +45
Two-dimensional (2D) semiconductors are emerging as a versatile platform for nanophotonics, offering unprecedented tunability in optical properties through exciton resonance engine…
Subnanometric control of coupling between WS monolayers with a molecular spacer
Sara A. Elrafei, Tom T. C. Sistermans, Alberto G. Curto
Stacking monolayer semiconductors into heterostructures allows for control of their optical and electronic properties, offering advantages for nanoscale electronics, optoelectronic…
Guiding light with surface exciton-polaritons in atomically thin superlattices
Sara A. Elrafei, T. V. Raziman, Sandra de Vega +2
Two-dimensional materials give access to the ultimate physical limits of Photonics with appealing properties for ultracompact optical components such as waveguides and modulators.…
Approaching the absorption limit with monolayer semiconductor superlattices
Sara A. Elrafei, Lennart M. Heijnen, Rasmus H. Godiksen +1
Optical absorption plays a central role in optoelectronic and photonic technologies. Strongly absorbing materials are thus needed for efficient and miniaturized devices. There exis…
Collective Mie Exciton-Polaritons in an Atomically Thin Semiconductor
Shaojun Wang, T. V. Raziman, Shunsuke Murai +6
Optically induced Mie resonances in dielectric nanoantennas feature low dissipative losses and large resonant enhancement of both electric and magnetic fields. They offer an altern…
A 20-Gbps Beam-steered Infrared Wireless Link Enabled by a Passively Field-programmable Metasurface
Jianou Huang, Chao Li, Yu Lei +7
Beam steering is one of the main challenges in energy-efficient and high-speed infrared light communication. To date, active beam-steering schemes based on a spatial light modulato…
Exciton diffusion and annihilation in nanophotonic Purcell landscapes
T. V. Raziman, C. Peter Visser, Shaojun Wang +2
Excitons spread through diffusion and interact through exciton-exciton annihilation. Nanophotonics can counteract the resulting decrease in light emission. However, conventional en…
Impact of indirect transitions on valley polarization in WS and WSe
Rasmus H. Godiksen, Shaojun Wang, T. V. Raziman +2
Controlling the momentum of carriers in semiconductors, known as valley polarization, is a new resource for optoelectronics and information technologies. Materials exhibiting high…
Enhanced light emission by magnetic and electric resonances in dielectric metasurfaces
Shunsuke Murai, Gabriel W. Castellanos, T. V. Raziman +2
We demonstrate an enhanced emission of high quantum yield molecules coupled to dielectric metasurfaces formed by periodic arrays of polycrystalline silicon nanoparticles. Radiative…
Screened Strong Coupling of Excitons in Multilayer WS2 with Collective Plasmonic Resonances
Shaojun Wang, Quynh Le-Van, Fabio Vaianella +5
We demonstrate the strong coupling of direct transition excitons in tungsten disulfide (WS2) with collective plasmonic resonances at room temperature. We use open plasmonic cavitie…
Silicon Mie Resonators for Highly Directional Light Emission from monolayer MoS2
Ahmet Fatih Cihan, Alberto G. Curto, Søren Raza +2
Controlling light emission from quantum emitters has important applications ranging from solid-state lighting and displays to nanoscale single-photon sources. Optical antennas have…
Optical emission near a high-impedance mirror
Majid Esfandyarpour, Alberto G. Curto, Pieter G. Kik +2
Solid state light emitters rely on metallic contacts with high sheet-conductivity for effective charge injection. Unfortunately, such contacts also support surface plasmon polarito…
Broadband Linear-Dichroic Photodetector in a Black Phosphorus Vertical p-n Junction
Hongtao Yuan, Xiaoge Liu, Farzaneh Afshinmanesh +12
The ability to detect light over a broad spectral range is central for practical optoelectronic applications, and has been successfully demonstrated with photodetectors of two-dime…