Work

Tunable strong exciton-photon coupling in whispering gallery-Fabry Pérot hybrid microcavities

Year: 2025

Type: article

Abstract: The strong coupling regime lies at the heart of light-matter interactions. It is usually realized by incorporating emitters into an individual optical microcavity. In this work, we report strong exciton-photon coupling in a hybrid whispering gallery-Fabry Pérot double-cavity system. By means of angle-resolved confocal micro-spectroscopy, we observed scale-like emission patterns exhibiting anti-crossing features in the angle-resolved images. Keeping the whispering gallery modes unchanged, we found that the strong coupling regime can be readily controlled by an additionally applied Fabry-Pérot microcavity. The observed patterns are well described by a three-coupled-oscillator model incorporating the strong coupling between excitons and the hybrid photonic modes of the double-cavity system. Our results demonstrate a versatile platform for tunable strong couplings, which could find potential applications in polariton-based optoelectronic devices.

Source: Optical Materials Express

DOI: 10.1364/ome.576637

Authors: Fangxin Zhang, Xiamei Zheng, Changchang Huang, Yichun Pan, Weihang Zhou

Language: English

Topic: Strong Light-Matter Interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,843

Funders: National Natural Science Foundation of China, National Key Research and Development Program of China

Awards: G2869755911, G3031993286