Wang, Y., Adamo, G., Ha, S. T., Tian, J., & Soci, C. (2024). Electrically Generated Exciton Polaritons with Spin On‐Demand. Advanced Materials, 37(8). Portico. https://doi.org/10.1002/adma.202412952
Abstract:
Generation and manipulation of exciton polaritons with controllable spin could deeply impact spintronic applications, quantum simulations, and quantum information processing, but is inherently challenging due to the charge neutrality of the polariton and the device complexity it requires. Here, electrical generation of spin‐polarized exciton polaritons in a monolithic dielectric perovskite metasurface embedded in a light‐emitting transistor is demonstrated. A finely tailored interplay of in‐ and out‐of‐plane symmetry breaking of the metasurface allows to lift the spin degeneracy through the polaritonic Rashba effect, yielding high spin purity with normalized Stokes parameter of S3 ≈ 0.8. Leveraging on spin‐momentum locking, the unique metatransistor device architecture enables electrical control of spin and directionality of the polaritonic emission. Here, the development of compact and tunable spintronic devices is advanced and an important step toward the realization of electrically pumped inversionless spin‐lasers is represented.
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Publisher Copyright
Funding Info:
This research / project is supported by the Agency for Science, Technology and Research - Manufacturing, Trade, and Connectivity Programmatic Fund - Nanoantenna Light Emitting Devices
Grant Reference no. : M21J9b0085
This research / project is supported by the Agency for Science, Technology and Research - Advanced Manufacturing and Engineering (AME) Programmatic Fund
Grant Reference no. : A18A7b0058
This research / project is supported by the Ministry of Education, Singapore - Academic Research Fund Tier 2
Grant Reference no. : MOE-T2EP50222-0015
Description:
This is the peer reviewed version of the following article: Wang, Y., Adamo, G., Ha, S. T., Tian, J., & Soci, C. (2024). Electrically Generated Exciton Polaritons with Spin On‐Demand. Advanced Materials, 37(8). Portico, which has been published in final form at https://doi.org/10.1002/adma.202412952. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.