Abstract
Self-hybridizing structures based on transition metal dichalcogenides (TMDCs) are becoming promising candidates for the study of an intrinsic strong light–matter coupling because of the efficient mode overlap with much simplified geometries. However, realizing flexible tuning of intrinsic strong coupling in such TMDC-based structures is still challenging. Here, we propose a strategy for flexible tuning of the intrinsic strong light–matter coupling based on a bulk TMDC material. We report the first demonstration of the strong coupling of intrinsic excitons to whispering gallery modes (WGMs) supported by an all-TMDC nanocavity. Importantly, by simply controlling angles of incidence, a selective excitation of WGMs and an anapole can be realized, which enables a direct modulation of self-hybridized interactions from a bright WGM–exciton coupling to a dark anapole–exciton coupling. Our work is expected to provide unique opportunities for engineering a strong light–matter coupling and to open exciting avenues for highly integrated novel nanophotonic devices.
© 2024 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Shaojun You, Ying Zhang, Menghui Fan, Shengyun Luo, and Chaobiao Zhou
Opt. Lett. 48(6) 1530-1533 (2023)
Xueyang Zong, Lixia Li, and Yufang Liu
Opt. Lett. 46(24) 6095-6098 (2021)
Alex Krasnok, Sergey Lepeshov, and Andrea Alú
Opt. Express 26(12) 15972-15994 (2018)