Large-area Photonic Topological Waveguides with Wide Operating Bandwidths
ID：52
Submission ID：93 View Protection：ATTENDEE
Updated Time：2024-10-23 10:48:01
Hits：32
Oral Presentation
Start Time：2024-11-02 10:30 （Asia/Shanghai）
Duration：20min
Session：[P2] Parallel Session 2 » [P2-2] Parallel Session 2（November 2 AM）
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Abstract
Topological states constructed using photonic topological insulators have garnered significant attention due to their exceptional wave modulation properties. Generally, topological edge states typically form at the interface between two domains of trivial and nontrivial photonic crystals (PhCs), which limits the capacity of transmissions and the interfacing with existing bulk devices in applications. Current studies have achieved large-area topological waveguide states through gapless PhCs insertion between trivial and nontrivial PhCs. However, as the width of the waveguide increases, the operating band tends to be significantly narrowed. In this research, we propose heterostructures with intermittently coupled topological waveguides that are capable of realizing wide-width large-area waveguides while maintaining robustness against structural defects. Simulation results verify that the device is capable of flexible and adjustable wave transmission. The device can realize large-area photonic waveguides with operating bandwidths of approximately 4 GHz. This structure holds the potential for the design of wide-width multifunctional, strongly robust, and highly flexible topological devices.
Keywords
large-area waveguides, topological insulator, wide-width
Speaker
TongShiqi
PhD Southeast UniversitySubmission Author
All comments
15th August 2024 31st August 2024- Manuscript Submission
15th September 2024 - Acceptance Notification
1st October 2024 - Camera Ready Submission
1st October 2024 – Early Bird Registration
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