Gate-Tunable Emission of Exciton–Plasmon Polaritons
in Hybrid MoS2‑Gap-Mode Metasurfaces
Version 2 2019-06-24, 18:40Version 2 2019-06-24, 18:40
Version 1 2019-06-24, 18:34Version 1 2019-06-24, 18:34
Posted on 2019-06-24 - 18:40
The
advance in designing arrays of ultrathin two-dimensional optical
nanoresonators, known as metasurfaces, is currently enabling a large
variety of novel flat optical components. The remarkable control over
the electromagnetic fields offered by this technology can be further
extended to the active regime in order to manipulate the light characteristics
in real-time. In this contribution, we couple the excitonic resonance
of atomic thin MoS2 monolayers with gap-surface-plasmon
(GSP) metasurfaces, and demonstrate selective enhancement of the exciton–plasmon
polariton emissions. We further demonstrate tunable emissions by controlling
the charge density at the interface through electrically gating in
the Metal-Oxide-Semiconductor (MOS) structure. Straddling two very
active fields of research, this demonstration of electrically tunable
light-emitting metasurfaces enables real-time manipulation of light–matter
interactions at the extreme subwavelength dimensions.
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Ni, Peinan; De Luna Bugallo, Andrès; Arellano Arreola, Victor M.; Salazar, Mario Flores; Strupiechonski, Elodie; Brändli, Virginie; et al. (2019). Gate-Tunable Emission of Exciton–Plasmon Polaritons
in Hybrid MoS2‑Gap-Mode Metasurfaces. ACS Publications. Collection. https://doi.org/10.1021/acsphotonics.9b00433