Enhanced coupling between lead halide perovskite phonons and THz fields in a flexible Fabry-Perot cavity

Hwan Sik Kim; Abbas Ahmad Khan; Yeong-Hwan Ahn

doi:10.1117/12.2649709

15 March 2023 Enhanced coupling between lead halide perovskite phonons and THz fields in a flexible Fabry-Perot cavity

Hwan Sik Kim, Abbas Ahmad Khan, Yeong-Hwan Ahn

Proceedings Volume PC12419, Ultrafast Phenomena and Nanophotonics XXVII; (2023) https://doi.org/10.1117/12.2649709
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

We investigated THz phonon-polaritons by incorporating virtually free-standing lead halide perovskite into Fabry-Perot cavities. Rabi splitting occurred when the cavity resonance is in tune with the phonon resonance due to the strong coupling between the resonances. The Rabi splitting increased with the perovskite thickness, reaching 2.4 times of the strong coupling criterion; clear quantum beat oscillations were observed in the time domain. We also fabricated the flexible polariton devices using a plastic substrate for the development of tunable quantum states, controllable with mechanical bending processes.

Conference Presentation

Citation Download Citation

Hwan Sik Kim, Abbas Ahmad Khan, and Yeong-Hwan Ahn "Enhanced coupling between lead halide perovskite phonons and THz fields in a flexible Fabry-Perot cavity", Proc. SPIE PC12419, Ultrafast Phenomena and Nanophotonics XXVII, (15 March 2023); https://doi.org/10.1117/12.2649709

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