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Merging Bound States in the Continuum at Off-High Symmetry Points
- 发表刊物：Physical Review Letters
- 摘要：Bound states in the continuum (BICs) confine resonances embedded in a continuous spectrum by eliminating radiation loss. Merging multiple BICs provides a promising approach to further reduce the scattering losses caused by fabrication imperfections. However, to date, BIC merging has been limited to only the Γ point, which constrains potential application scenarios such as beam steering and directional vector beams. Here, we propose a new scheme to construct merging BICs at almost an arbitrary point in reciprocal space. Our approach utilizes the topological features of BICs on photonic crystal…
- 论文类型：期刊论文
- 卷号：126
- 期号：11
- 页面范围：117402
- 是否译文：否
- 发表时间：2021-03-19
