A Reconfigurable Topological Gap Waveguide Based on Liquid Crystal
- Resource Type
- Conference
- Authors
- Ren, Yan; Lin, Hai
- Source
- 2023 International Applied Computational Electromagnetics Society Symposium (ACES-China) Applied Computational Electromagnetics Society Symposium (ACES-China), 2023 International. :01-03 Aug, 2023
- Subject
- Engineering Profession
Fields, Waves and Electromagnetics
Gap waveguide
Photonic crystals
Semiconductor waveguides
System-on-chip
Topological insulators
Liquid crystals
Optical waveguides
photonic topological insulators (PTIs)
gap waveguide (GW)
liquid crystal (LC)
reconfigurable
- Language
The efficient backscatter suppression and robust transmission properties of photonic topological insulators (PTIs) promise to be a platform for high-performance microwave/millimeter-wave device design. In this paper, a reconfigurable gap waveguide (GW) is designed based on PTIs and its energy transfer tunable characteristics are realized using the anisotropic tunability of liquid crystals (LCs). This topological gap waveguide not only overcomes the problem of backscattering losses caused by manufacturing errors and structural bending in conventional gap waveguides, but is also compatible with conventional semiconductor technology. The proposed structure has potential applications in the backscatter suppression of tunable on-chip integrated topological photonic devices.