Hyperbolic-to-hyperbolic transition at exceptional Reststrahlen point in rare-earth oxyorthosilicates

• Main Authors: Zheng, Chunqi, Hu, Guangwei, Wei, Jingxuan, Ma, Xuezhi, Li, Zhipeng, Chen, Yinzhu, Ni, Zhenhua, Li, Peining, Wang, Qian, Qiu, Cheng-Wei
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2024
• Subjects: Engineering; Anisotropy; Monoclinic crystal
• Online Access: https://hdl.handle.net/10356/181251
• Institution: Nanyang Technological University

Anisotropic optical crystals can exhibit a hyperbolic response within the Reststrahlen band (RB) and support directional polaritonic propagations when interacting with light. Most of the reported low-symmetry optical crystals showcase the evolution from hyperbolic to elliptic dispersion topologies,...