武汉大学主页平台管理系统肖孟--Chinese-- A journey through bound states in the continuum in periodic optical structures

研究方向

发表刊物：Photonics Insights
摘要：Bound states in the continuum (BIC) were first identified by von Neumann and Wigner [1] almost a century ago. At that time, they pointed out an intriguing phenomenon: a state could be bound by a special oscillating potential distribution, even when the state’s energy is higher than the maximum of the potential. According to the principles taught in elementary quantum mechanics, the energy of such a state should lie within the continuum spectrum; thus it is referred to a bound state in the continuum. In the past two decades, thanks to advancements in fabrication technology, this counterintuitive phenomenon has been intensively investigated and extended to various kinds of classical wave systems [2–4]. According to the non-existence theorem [5], a system sustaining a BIC must be periodic in at least one direction unless materials with extreme parameters (ie, ε, μ= 0 or∞) are chosen [6, 7]. Periodicity along with the flexibility, tunability, and rich application prospects of optical systems make periodic optical structures an excellent platform for exploring BICs.
卷号：3
期号：2
页面范围：C05-C05
是否译文：否
发表时间：2024-06-28