Tunable Hybrid Fano Resonances in Halide Perovskite Nanoparticles
Journal article, 2018
© 2018 American Chemical Society. Halide perovskites are known to support excitons at room temperatures with high quantum yield of luminescence that make them attractive for all-dielectric resonant nanophotonics and meta-optics. Here we report the observation of broadly tunable Fano resonances in halide perovskite nanoparticles originating from the coupling of excitons to the Mie resonances excited in the nanoparticles. Signatures of the photon-exciton ("hybrid") Fano resonances are observed in dark-field spectra of isolated nanoparticles, and also in the extinction spectra of aperiodic lattices of such nanoparticles. In the latter case, chemical tunability of the exciton resonance allows reversible tuning of the Fano resonance across the 100 nm bandwidth in the visible frequency range, providing a novel approach to control optical properties of perovskite nanostructures. The proposed method of chemical tuning paves the way to an efficient control of emission properties of on-chip-integrated light-emitting nanoantennas.
nanophotonics
Mie resonances
excitons
halide perovskites
Fano resonance
Author
Ekaterina Y. Tiguntseva
ITMO University
Denis Baranov
ITMO University
Chalmers, Physics, Bionanophotonics
Anatoly P. Pushkarev
ITMO University
Battulga Munkhbat
Chalmers, Physics, Bionanophotonics
Filipp Komissarenko
ITMO University
Marius Franckevičius
Center for Physical Sciences & Technology
Anvar A. Zakhidov
University of Texas at Dallas
ITMO University
Timur Shegai
Chalmers, Physics, Bionanophotonics
Yuri S. Kivshar
ITMO University
Australian National University
S. Makarov
ITMO University
Nano Letters
1530-6984 (ISSN) 1530-6992 (eISSN)
Vol. 18 9 5522-5529Subject Categories
Atom and Molecular Physics and Optics
Other Physics Topics
Condensed Matter Physics
DOI
10.1021/acs.nanolett.8b01912