Multiple Hyperbolic Dispersion Branches and Broadband Canalization in a Phonon-Polaritonic Heterostructure.

• Tác giả: Zhe Cui, Youning Gong, Delong Li, Jun Liang, Qingdong Ou, Guo Ping Wang, Yupeng Zhang, Yanyu Zhao, Jiaqi Zhu
• Ngôn ngữ: eng
• Ký hiệu phân loại: 912.01 Philosophy and theory
• Thông tin xuất bản: United States : Nano letters , 2025
• Bộ sưu tập: NCBI
• ID: 193363

Tóm tắt

Hyperbolic polaritons in anisotropic crystals hold great promise for guiding the flow of light at deep-subwavelength scales. However, conventional hyperbolic dispersion with a single pair of symmetric branches inherently confines polaritons to propagate only within specific spatial directions. Here we demonstrate a multibranch in-plane hyperbolic dispersion in a phonon-polaritonic heterostructure composed of α-phase molybdenum trioxide (α-MoO