Nonlinearly pumped vortex lasing from perovskite metasurface based on quasi-bound states in the continuum

Chi-Ching Liu; Hui-Hsin Hsiao; Yun-Chorng Chang

doi:10.1117/12.2675977

5 October 2023 Nonlinearly pumped vortex lasing from perovskite metasurface based on quasi-bound states in the continuum

Chi-Ching Liu, Hui-Hsin Hsiao, Yun-Chorng Chang

Author Affiliations +

Proceedings Volume PC12648, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXI; PC1264805 (2023) https://doi.org/10.1117/12.2675977
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Abstract

In this research, nonlinearly two-photon pumped vortex lasing was firstly observed from perovskite metasurface. The lasing occurred at room temperature is based on the quasi-bound states in the continuum (QBIC) mode with a lasing threshold of 4.5mJ/cm2. The corresponding quality factor is around 1100. The vortex lasing mode is theoretically estimated to be a magnetic dipole mode with a topological charge of +1. In addition, the finite array size effect is found to be able to modulate the lasing. Results shown in this study should provide new ways to engineer more complex vortex beam lasing.

Conference Presentation

Citation Download Citation

Chi-Ching Liu, Hui-Hsin Hsiao, and Yun-Chorng Chang "Nonlinearly pumped vortex lasing from perovskite metasurface based on quasi-bound states in the continuum", Proc. SPIE PC12648, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXI, PC1264805 (5 October 2023); https://doi.org/10.1117/12.2675977

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