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https://hdl.handle.net/10356/148318
Title: | Nonlinear parametric scattering of exciton polaritons in perovskite microcavities | Authors: | Wu, Jinqi Ghosh, Sanjib Su, Rui Fieramosca, Antonio Liew, Timothy Chi Hin Xiong, Qihua |
Keywords: | Science::Physics::Optics and light Engineering::Materials::Photonics and optoelectronics materials |
Issue Date: | 2021 | Source: | Wu, J., Ghosh, S., Su, R., Fieramosca, A., Liew, T. C. H. & Xiong, Q. (2021). Nonlinear parametric scattering of exciton polaritons in perovskite microcavities. Nano Letters, 21(7), 3120-3126. https://dx.doi.org/10.1021/acs.nanolett.1c00283 | Project: | MOE2017-T2-1-001 MOE2018-T2-2-068 MOE2019-T2-1-004 MOE2018-T3-1-002 |
Journal: | Nano Letters | Abstract: | Comparing with pure photons, higher nonlinearity in polariton systems has been exploited in various proof-of-principle demonstrations of efficient optical devices based on the parametric scattering effect. However, most of them demand cryogenic temperatures limited by the small exciton binding energy of traditional semiconductors or exhibit weak nonlinearity resulting from Frenkel excitons. Lead halide perovskites, possessing both a large binding energy and a strong polariton interaction, emerge as ideal platforms to explore nonlinear polariton physics toward room temperature operation. Here, we report the first observation of nonlinear parametric scattering in a lead halide perovskite microcavity with multiple polariton branches at room temperature. Driven by the scattering source from condensation in one polariton branch, correlated polariton pairs are obtained at high k states in an adjacent branch. Our results strongly advocate the ability to reach the nonlinear regime essential for perovskite polaritonics working at room temperature. | URI: | https://hdl.handle.net/10356/148318 | ISSN: | 1530-6984 | DOI: | 10.1021/acs.nanolett.1c00283 | DOI (Related Dataset): | 10.21979/N9/3ZWUGJ | Schools: | School of Physical and Mathematical Sciences | Rights: | This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.nanolett.1c00283. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | SPMS Journal Articles |
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Nonlinear Parametric Scattering of Exciton Polaritons in Perovskite Microcavities (003).pdf | 2.62 MB | Adobe PDF | View/Open |
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