Chulwon Lee

Selected Publications

Topologically protected exceptional points and reentrant 𝒫𝒯 phase in an exact ternary model, Chulwon Lee, Kai Zhang, Kai Sun, and Hui Deng, Phy. Rev. A., 109, 053503 (2024)

https://doi.org/10.1103/PhysRevA.109.053503

Interplay of strain and intermixing effects on direct-bandgap optical transition in strained Ge-on-Si under thermal annealing, Chulwon Lee, Yang-Seok Yoo, Bugeun Ki, Min-Ho Jang, Seung-Hyuk Lim, Hyun Gyu Song, Jong-Hoi Cho, Jungwoo Oh & Yong-Hoon Cho, Scientific Reports, 9, 11709 (2019)

https://doi.org/10.1038/s41598-019-48032-4

Research Interests

The topics that interest me recently are (but not limited to): 

Strained Germanium Photonics

I am interested in achieving telecommunication frequency lasing from strained Germanium lasers, particularly at an elevated temperature via novel strain/photonic engineering. 

Non-Hermitian Photonics/Polaritonics

I am interested in polaritonic implementation of excitons in an optical non-Hermitian system and emerging topological physics from polationic non-Hermitian systems. In particular, photonic implementation of non-Hermicity for achieving novel photonic device is most recent topic that fascinates me.

Exciton-Polaritons

Exciton-polariton is a quasi-particle excitation of an exciton-photon mixture. It has been at the center of attention for its bosonic nature and emerging quantum phenomena. My interests lie in non-Hermitian aspects of exciton-polariton systems.