中国物理B ›› 2023, Vol. 32 ›› Issue (3): 34213-034213.doi: 10.1088/1674-1056/acb760
A 3-5 μm broadband YBCO high-temperature superconducting photonic crystal
Gang Liu(刘刚)1,2,†, Yuanhang Li(李远航)2,3, Baonan Jia(贾宝楠)2, Yongpan Gao(高永潘)2, Lihong Han(韩利红)2, Pengfei Lu(芦鹏飞)2,3, and Haizhi Song(宋海智)4,‡
- 1 Beijing Key Laboratory of Space-Ground Interconnection and Convergence, Beijing University of Posts and Telecommunications, Beijing 100876, China;
2 School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China;
3 State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;
4 Southwest Institute of Technical Physics, Chengdu 610041, China
A 3-5 μm broadband YBCO high-temperature superconducting photonic crystal
Gang Liu(刘刚)1,2,†, Yuanhang Li(李远航)2,3, Baonan Jia(贾宝楠)2, Yongpan Gao(高永潘)2, Lihong Han(韩利红)2, Pengfei Lu(芦鹏飞)2,3, and Haizhi Song(宋海智)4,‡
- 1 Beijing Key Laboratory of Space-Ground Interconnection and Convergence, Beijing University of Posts and Telecommunications, Beijing 100876, China;
2 School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China;
3 State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;
4 Southwest Institute of Technical Physics, Chengdu 610041, China
摘要： Photonic crystal structures have excellent optical properties, so they are widely studied in conventional optical materials. Recent research shows that high-temperature superconducting periodic structures have natural photonic crystal features and they are favourable candidates for single-photon detection. Considering that superconductors have completely different properties from conventional optical materials, we study the energy level diagram and mid-infrared 3 μm-5 μm transmission spectrum of two-dimensional superconducting photonic crystals in both superconducting and quenched states with the finite element method. The energy level diagram of the circular crystal column superconducting structure shows that the structure has a large band gap width in both states. At the same fill factor, the circular crystal column superconducting structure has a larger band gap width than the others structures. For lattice structures, the zero transmission point of the square lattice structure is robust to the incident angle and environmental temperature. Our research has guiding significance for the design of new material photonic crystals, photon modulation and detection.
中图分类号: (Quantum optics)
- 42.50.-p