Polariton spin Hall effect in a Rashba–Dresselhaus regime at room temperature
Exciton–polaritons—light–matter quasiparticles with spin degrees of freedom and ultrafast dynamics—are a promising platform for spin-based applications. However, an ongoing challenge is the generation and manipulation of high-purity polariton spins over macroscopic distances at room temperature. Her...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2024
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| Online Access: | https://hdl.handle.net/10356/174799 |
| _version_ | 1811684932505829376 |
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| author | Liang, Jie Wen, Wen Jin, Feng Rubo, Yuri G. Liew, Timothy Chi Hin Su, Rui |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Liang, Jie Wen, Wen Jin, Feng Rubo, Yuri G. Liew, Timothy Chi Hin Su, Rui |
| author_sort | Liang, Jie |
| collection | NTU |
| description | Exciton–polaritons—light–matter quasiparticles with spin degrees of freedom and ultrafast dynamics—are a promising platform for spin-based applications. However, an ongoing challenge is the generation and manipulation of high-purity polariton spins over macroscopic distances at room temperature. Here, by creating synthetic spin–orbit coupling in perovskite microcavities with liquid crystal molecules, we demonstrate the polariton spin Hall effect in the Rashba–Dresselhaus regime at room temperature, where spin-polarized polaritons with a high chirality of 0.88 are permanently separated as they propagate over 45 μm. We further show that their spin transport behaviours can be effectively manipulated by external electrical voltages. Our work represents an important step to generate purer polariton spin currents, paving the way to spin-optoelectronic applications with polaritons, such as spin lasers, spin filters and spin logic gates. |
| first_indexed | 2024-10-01T04:36:29Z |
| format | Journal Article |
| id | ntu-10356/174799 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:36:29Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1747992024-04-15T15:37:04Z Polariton spin Hall effect in a Rashba–Dresselhaus regime at room temperature Liang, Jie Wen, Wen Jin, Feng Rubo, Yuri G. Liew, Timothy Chi Hin Su, Rui School of Physical and Mathematical Sciences School of Electrical and Electronic Engineering Division of Physics and Applied Physics Physics Light-matter quasiparticles Photonics Microcavity Exciton–polaritons—light–matter quasiparticles with spin degrees of freedom and ultrafast dynamics—are a promising platform for spin-based applications. However, an ongoing challenge is the generation and manipulation of high-purity polariton spins over macroscopic distances at room temperature. Here, by creating synthetic spin–orbit coupling in perovskite microcavities with liquid crystal molecules, we demonstrate the polariton spin Hall effect in the Rashba–Dresselhaus regime at room temperature, where spin-polarized polaritons with a high chirality of 0.88 are permanently separated as they propagate over 45 μm. We further show that their spin transport behaviours can be effectively manipulated by external electrical voltages. Our work represents an important step to generate purer polariton spin currents, paving the way to spin-optoelectronic applications with polaritons, such as spin lasers, spin filters and spin logic gates. Ministry of Education (MOE) Nanyang Technological University National Research Foundation (NRF) Submitted/Accepted version R.S. and T.C.H.L. gratefully acknowledge funding support from the Singapore Ministry of Education via the AcRF Tier 3 programme ‘Geometrical Quantum Materials’ (MOE2018-T3-1-002) as well as the AcRF Tier 2 grant (MOE-T2EP50222-0008) and Tier 1 grant (RG80/23). R.S. also gratefully acknowledges funding support from the Nanyang Technological University via a Nanyang Assistant Professorship start-up grant and the Singapore National Research Foundation via a Competitive Research Program (grant no. NRF-CRP23-2019-0007). Y.G.R. and T.C.H.L. gratefully acknowledge funding support from PAPIIT-UNAM grant IN108524. 2024-04-12T02:37:24Z 2024-04-12T02:37:24Z 2024 Journal Article Liang, J., Wen, W., Jin, F., Rubo, Y. G., Liew, T. C. H. & Su, R. (2024). Polariton spin Hall effect in a Rashba–Dresselhaus regime at room temperature. Nature Photonics, 18, 357-362. https://dx.doi.org/10.1038/s41566-023-01375-x 1749-4893 https://hdl.handle.net/10356/174799 10.1038/s41566-023-01375-x 18 357 362 en MOE 2018-T3-1-002 MOE-T2EP50222-0008 RG80/23 NRF-CRP23-2019-0007 PAPIIT-UNAM-IN108524 Nature Photonics © 2024 The Author(s), under exclusive licence to Springer Nature Limited. All rights reserved. This article may be downloaded for personal use only. Any other use requires prior permission of the copyright holder. The Version of Record is available online at http://doi.org/10.1038/s41566-023-01375-x. application/pdf |
| spellingShingle | Physics Light-matter quasiparticles Photonics Microcavity Liang, Jie Wen, Wen Jin, Feng Rubo, Yuri G. Liew, Timothy Chi Hin Su, Rui Polariton spin Hall effect in a Rashba–Dresselhaus regime at room temperature |
| title | Polariton spin Hall effect in a Rashba–Dresselhaus regime at room temperature |
| title_full | Polariton spin Hall effect in a Rashba–Dresselhaus regime at room temperature |
| title_fullStr | Polariton spin Hall effect in a Rashba–Dresselhaus regime at room temperature |
| title_full_unstemmed | Polariton spin Hall effect in a Rashba–Dresselhaus regime at room temperature |
| title_short | Polariton spin Hall effect in a Rashba–Dresselhaus regime at room temperature |
| title_sort | polariton spin hall effect in a rashba dresselhaus regime at room temperature |
| topic | Physics Light-matter quasiparticles Photonics Microcavity |
| url | https://hdl.handle.net/10356/174799 |
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