Phase‐Change Perovskite Microlaser with Tunable Polarization Vortex

Phase‐Change Perovskite Microlaser with Tunable Polarization Vortex

Advanced Materials

10.1002/adma.202207430

http://dx.doi.org/10.1002/adma.202207430

Jingyi Tian, Giorgio Adamo, Hailong Liu, Mengfei Wu, Maciej Klein, Jie Deng, Norman Soo Seng Ang, Ramón Paniagua‐Domínguez, Hong Liu, Arseniy I. Kuznetsov, Cesare Soci

02 November 2022

Tian, J., Adamo, G., Liu, H., Wu, M., Klein, M., Deng, J., Ang, N. S. S., Paniagua‐Domínguez, R., Liu, H., Kuznetsov, A. I., & Soci, C. (2022). Phase‐Change Perovskite Microlaser with Tunable Polarization Vortex. Advanced Materials, 35(1). Portico. https://doi.org/10.1002/adma.202207430

Metasurfaces supporting optical bound states in the continuum (BICs) are emerging as simple and compact optical cavities to realize polarization‐vortex lasers. The winding of the polarization around the singularity defines topological charges which are generally set by the cavity design and cannot be altered without changing geometrical parameters. Here, a subwavelength‐thin phase‐change halide perovskite BIC metasurface functioning as a tunable polarization vortex microlaser is demonstrated. Upon the perovskite structural phase transitions, both its refractive index and gain vary substantially, inducing reversible and bistable switching between distinct polarization vortexes underpinned by opposite topological charges. Dynamic tuning and switching of the resulting vector beams may find use in microscopy imaging, particle trapping and manipulation, and optical data storage.

Publisher Copyright

This research / project is supported by the A*STAR AME - Nanoantenna Spatial Light Modulators for Next-Gen Display Technologies
Grant Reference no. : A18A7b0058

This research / project is supported by the Ministry of Education - NA
Grant Reference no. : MOE2016-T3-1-006

This research / project is supported by the National Research Foundation - NRF Investigatorship
Grant Reference no. : NRF-NRFI2017-01

This is the peer reviewed version of the following article: Tian, J., Adamo, G., Liu, H., Wu, M., Klein, M., Deng, J., Ang, N. S. S., Paniagua‐Domínguez, R., Liu, H., Kuznetsov, A. I., & Soci, C. (2022). Phase‐Change Perovskite Microlaser with Tunable Polarization Vortex. Advanced Materials, 35(1). Portico. https://doi.org/10.1002/adma.202207430, which has been published in final form at https://doi.org/10.1002/adma.202207430. 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.

https://oar.a-star.edu.sg/communities-collections/articles/20609

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