TY - JOUR
T1 - Tunable exciton-polaritons emerging from WS2 monolayer excitons in a photonic lattice at room temperature
AU - Lackner, L.
AU - Dusel, M.
AU - Egorov, O. A.
AU - Han, B.
AU - Knopf, H.
AU - Eilenberger, F.
AU - Schröder, S.
AU - Watanabe, K.
AU - Taniguchi, T.
AU - Tongay, S.
AU - Anton-Solanas, C.
AU - Höfling, S.
AU - Schneider, C.
N1 - Funding Information:
The authors gratefully acknowledge funding by the State of Bavaria and Lower Saxony. C.S. gratefully acknowledges funding by the European Research Council
Funding Information:
(ERC project 679288, unlimit-2D), and the German Research Foundation (DFG) within the project SCHN1376 14.1. We thank N. Carlon Zambon for his help in the transfer-matrix method simulations, Johannes Michl for the graphics design and A. Chernikov for providing accurate refractive index data for WS2. S.T. acknowledges the use of facilities within the Eyring Materials Center at Arizona State University supported in part by NNCI-ECCS-1542160. S.T. acknodwledges support from DOE-SC0020653 for materials characterization. NSF CMMI 1825594, NSF DMR-1955889, NSF CMMI-1933214 and NSF 1904716 for materials optimization and integration. We acknowledge NSF 1935994, NSF ECCS 2052527 and DMR 2111812 for SIMS characterization. NSF CMMI 2129412 for material development. F.E. and H.K. are supported by the Federal Ministry of Education and Science of Germany under Grant ID 13XP5053A. K.W. and T.T. acknowledge support from the Elemental Strategy Initiative conducted by the MEXT, Japan,Grant Number JPMXP0112101001 and JSPS KAKENHI Grant Number JP20H00354.
Publisher Copyright:
© 2021, The Author(s).
PY - 2021/12/1
Y1 - 2021/12/1
N2 - 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.
AB - 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.
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U2 - 10.1038/s41467-021-24925-9
DO - 10.1038/s41467-021-24925-9
M3 - Article
C2 - 34400620
AN - SCOPUS:85112701026
VL - 12
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 4933
ER -