Delphan, A. orcid.org/0000-0002-1197-7736, Makhonin, M.N. orcid.org/0000-0003-0457-9024, Isoniemi, T. orcid.org/0000-0003-0238-1006 et al. (7 more authors) (2023) Polariton lasing in AlGaN microring with GaN/AlGaN quantum wells. APL Photonics, 8 (2). 021302. ISSN 2378-0967
Abstract
Microcavity polaritons are strongly interacting hybrid light–matter quasiparticles, which are promising for the development of novel light sources and active photonic devices. Here, we report polariton lasing in the UV spectral range in microring resonators based on GaN/AlGaN slab waveguides, with experiments carried out from 4 K up to room temperature. Stimulated polariton relaxation into multiple ring resonator modes is observed, which exhibit threshold-like dependence of the emission intensity with pulse energy. The strong exciton-photon coupling regime is confirmed by the significant reduction of the free spectral range with energy and the blueshift of the exciton–like modes with increasing pulse energy. Importantly, the exciton emission shows no broadening with power, further confirming that lasing is observed at electron–hole densities well below the Mott transition. Overall, our work paves the way toward the development of novel UV devices based on the high-speed slab waveguide polariton geometry operating up to room temperature with the potential to be integrated into complex photonic circuits.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Author(s) 2023. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/R007977/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/S030751/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/V026496/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 22 Feb 2023 11:56 |
Last Modified: | 22 Feb 2023 11:56 |
Status: | Published |
Publisher: | AIP Publishing |
Refereed: | Yes |
Identification Number: | 10.1063/5.0132170 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:196623 |