Affiliation:
1. China University of Mining and Technology
2. Guangxi Normal University
3. Southeast University
Abstract
Topological edge states have an important role in optical modulation with potential applications in wavelength division multiplexers (WDMs). In this paper, 2D photonic crystals (PCs) with different rotation angles are combined to generate topological edge states. We reveal the relationship between the edge states and the rotation parameters of PCs, and further propose a WDM to realize the application of adjustable beams. Our findings successfully reveal the channel selectivity for optical transmission and provide a flexible way to promote the development of topological photonic devices.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
State Key Laboratory of Millimeter Waves
Intergovernmental Science and Technology Regular Meeting Exchange Project of Ministry of Science and Technology of China
Natural Science Foundation of Jiangsu Province
Subject
Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Cited by
12 articles.
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