中国物理B ›› 2024, Vol. 33 ›› Issue (3): 34202-034202.doi: 10.1088/1674-1056/ad0ec7

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Simultaneous guidance of electromagnetic and elastic waves via glide symmetry phoxonic crystal waveguides

Lin-Lin Lei(雷林霖), Ling-Juan He(何灵娟), Qing-Hua Liao(廖清华), Wen-Xing Liu(刘文兴), and Tian-Bao Yu(于天宝)   

  1. School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
  • 收稿日期:2023-09-25 修回日期:2023-11-20 接受日期:2023-11-22 出版日期:2024-02-22 发布日期:2024-03-06
  • 通讯作者: Ling-Juan He E-mail:helingjuan_123@163.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 12064025), the Natural Science Foundation of Jiangxi Province, China (Grant No. 20212ACB202006), the Major Discipline Academic and Technical Leaders Training Program of Jiangxi Province, China (Grant No. 20204BCJ22012), and the Open Project of the Key Laboratory of Radar Imaging and Microwave Photonic Technology of the Education Ministry of China.

Simultaneous guidance of electromagnetic and elastic waves via glide symmetry phoxonic crystal waveguides

Lin-Lin Lei(雷林霖), Ling-Juan He(何灵娟), Qing-Hua Liao(廖清华), Wen-Xing Liu(刘文兴), and Tian-Bao Yu(于天宝)   

  1. School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
  • Received:2023-09-25 Revised:2023-11-20 Accepted:2023-11-22 Online:2024-02-22 Published:2024-03-06
  • Contact: Ling-Juan He E-mail:helingjuan_123@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 12064025), the Natural Science Foundation of Jiangxi Province, China (Grant No. 20212ACB202006), the Major Discipline Academic and Technical Leaders Training Program of Jiangxi Province, China (Grant No. 20204BCJ22012), and the Open Project of the Key Laboratory of Radar Imaging and Microwave Photonic Technology of the Education Ministry of China.

摘要: A phoxonic crystal waveguide with the glide symmetry is designed, in which both electromagnetic and elastic waves can propagate along the glide plane at the same time. Due to the glide symmetry, the bands of the phoxonic crystal super-cell degenerate in pairs at the boundary of the Brillouin zone. This is the so-called band-sticking effect and it causes the appearance of gapless guided-modes. By adjusting the magnitude of the glide dislocation the edge bandgaps, the bandgap of the guided-modes at the boundary of the Brillouin zone, can be further adjusted. The photonic and phononic guided-modes can then possess only one mode for a certain frequency with relatively low group velocities, achieving single-mode guided-bands with relatively flat dispersion relationship. In addition, there exists acousto-optic interaction in the cavity constructed by the glide plane. The proposed waveguide has potential applications in the design of novel optomechanical devices.

关键词: phoxonic crystals, glide symmetry, waveguide, acousto-optic interaction

Abstract: A phoxonic crystal waveguide with the glide symmetry is designed, in which both electromagnetic and elastic waves can propagate along the glide plane at the same time. Due to the glide symmetry, the bands of the phoxonic crystal super-cell degenerate in pairs at the boundary of the Brillouin zone. This is the so-called band-sticking effect and it causes the appearance of gapless guided-modes. By adjusting the magnitude of the glide dislocation the edge bandgaps, the bandgap of the guided-modes at the boundary of the Brillouin zone, can be further adjusted. The photonic and phononic guided-modes can then possess only one mode for a certain frequency with relatively low group velocities, achieving single-mode guided-bands with relatively flat dispersion relationship. In addition, there exists acousto-optic interaction in the cavity constructed by the glide plane. The proposed waveguide has potential applications in the design of novel optomechanical devices.

Key words: phoxonic crystals, glide symmetry, waveguide, acousto-optic interaction

中图分类号:  (Wave propagation, transmission and absorption)

  • 42.25.Bs
42.70.Qs (Photonic bandgap materials) 42.79.Jq (Acousto-optical devices)