articlePhotonics InsightsJan 1, 2024DIAMOND OA

Optical bound states in the continuum in periodic structures: mechanisms, effects, and applications

JWJiajun WangPLPeishen LiXZXingqi ZhaoZQZhiyuan QianXWXinhao Wang

Fudan University · State Key Laboratory of Surface Physics · +2 more institutions

Indexed incrossrefdoaj

Abstract

Optical bound states in the continuum (BICs) have recently stimulated a research boom, accompanied by demonstrations of abundant exotic phenomena and applications.With ultrahigh quality (Q) factors, optical BICs have powerful abilities to trap light in optical structures from the continuum of propagation waves in free space.Besides the high Q factors enabled by the confined properties, many hidden topological characteristics were discovered in optical BICs.Especially in periodic structures with well-defined wave vectors, optical BICs were discovered to carry topological charges in momentum space, underlying many unique physical properties.Both high Q factors and topological vortex configurations in momentum…

Citation impact

176
total citations
FWCI
54.54
Percentile
100%
References
300
Citations per year

Authors

11

Topics & keywords

Topics
Keywords
  • Bound state
  • Physics
  • Statistical physics
  • Theoretical physics
  • Quantum mechanics
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