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.

Fano resonance

excitons

nanophotonics

Mie resonances

halide perovskites

Author

Ekaterina Y. Tiguntseva

ITMO University

Denis Baranov

Chalmers, Physics, Bionanophotonics

ITMO University

Anatoly P. Pushkarev

ITMO University

Battulga Munkhbat

Chalmers, Physics, Bionanophotonics

Filipp Komissarenko

ITMO University

Marius Franckevičius

Center for Physical Sciences & Technology

Anvar A. Zakhidov

ITMO University

University of Texas at Dallas

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 5522-5529

Subject Categories

Atom and Molecular Physics and Optics

Other Physics Topics

Condensed Matter Physics

DOI

10.1021/acs.nanolett.8b01912

More information

Latest update

12/10/2018