Tunable exciton-polaritons emerging from WS2 monolayer excitons in a photonic lattice at room temperature
L. Lackner,Marco Dusel,Oleg A. Egorov,Bo Han,Heiko Knopf,Falk Eilenberger,Falk Eilenberger,Sven Schröder,Kazuyuki Watanabe,T. Taniguchi,Sefaattin Tongay,Carlos Antón-Solanas,Sven Höfling,C. Schneider,C. Schneider +14 more
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TLDR
In this paper, the authors demonstrate lattice polaritons, based on an open, high-quality optical cavity, with an imprinted photonic lattice strongly coupled to excitons in a WS2 monolayer.Abstract:
Engineering non-linear hybrid light-matter states in tailored lattices is a central research strategy for the simulation of complex Hamiltonians. Excitons in atomically thin crystals are an ideal active medium for such purposes, since they couple strongly with light and bear the potential to harness giant non-linearities and interactions while presenting a simple sample-processing and room temperature operability. We demonstrate lattice polaritons, based on an open, high-quality optical cavity, with an imprinted photonic lattice strongly coupled to excitons in a WS2 monolayer. We experimentally observe the emergence of the canonical band-structure of particles in a one-dimensional lattice at room temperature, and demonstrate frequency reconfigurability over a spectral window exceeding 85 meV, as well as the systematic variation of the nearest-neighbour coupling, reflected by a tunability in the bandwidth of the p-band polaritons by 7 meV. The technology presented in this work is a critical demonstration towards reconfigurable photonic emulators operated with non-linear photonic fluids, offering a simple experimental implementation and working at ambient conditions. Excitons in atomically thin crystals couple strongly with light. Here, the authors observe lattice polaritons in a tunable open optical cavity at room temperature, with an imprinted photonic lattice strongly coupled to excitons in a WS2 monolayer.read more
Citations
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Polariton condensates for classical and quantum computing
Alexey Kavokin,Timothy Chi Hin Liew,Christian Schneider,Pavlos G. Lagoudakis,Sebastian Klembt,S. Hoefling +5 more
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Extended Bose–Hubbard model with dipolar excitons
Camille Lagoin,Utso Bhattacharya,Tobias Graß,Ravindra W. Chhajlany,Tymoteusz Salamon,Kirk W. Baldwin,L. N. Pfeiffer,Maciej Lewenstein,Markus Holzmann,F. Dubin +9 more
TL;DR: In this paper , the authors show that dipolar excitons enable controlled implementations of boson-like arrays with strong off-site interactions, in lattices with programmable geometries and more than 100 sites.
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Exciton optics, dynamics, and transport in atomically thin semiconductors
Raül Perea-Causín,Daniel Erkensten,Jamie M. Fitzgerald,Joshua Thompson,Roberto Rosati,Samuel Brem,Ermin Malic +6 more
TL;DR: In this paper , the authors review the recent progress in the understanding of exciton optics, dynamics, and transport, which crucially govern the operation of TMD-based devices and highlight the impact of hexagonal boron nitride-encapsulation.
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Recent advances on strong light-matter coupling in atomically thin TMDC semiconductor materials
Ibrahim A. M. Al‐Ani,Khalil As'ham,Oleh Klochan,Haroldo T. Hattori,Lujun Huang,Andrey E. Miroshnichenko +5 more
TL;DR: In this article , the authors reviewed recent progress of strong coupling between exciton in transition metal dichalcogenides (TMDCs) and different resonant photonic structures, such as optical microcavities, plasmonic and all-dielectric nanocavities.
Journal ArticleDOI
Strongly enhanced light-matter coupling of monolayer WS2 from a bound state in the continuum.
E. Maggiolini,Laura Polimeno,Francesco Todisco,Anna Di Renzo,B. Han,Milena De Giorgi,Vincenzo Ardizzone,Christian Schneider,Rosanna Mastria,Alessandro Cannavale,Marco Pugliese,Luisa De Marco,A. Rizzo,Vincenzo Maiorano,Giuseppe Gigli,Dario Gerace,Daniele Sanvitto,Dario Ballarini +17 more
TL;DR: In this paper , a topologically protected and highly interacting bound state in the continuum formed by a one-dimensional photonic crystal was used to achieve a 100 meV photonic bandgap and a Rabi splitting of 70 meV.
References
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TL;DR: The ultrafast switching dynamics of a driven polariton state is studied, demonstrating the ability to control the polariton population with an external laser pulse, in less than a few picoseconds.
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