物理
散射
棒
哈密顿量(控制论)
束缚态
特征向量
电介质
光子晶体
电磁辐射
量子力学
经典力学
量子光学
凝聚态物理
量子
光学
医学
数学优化
替代医学
数学
病理
作者
Evgeny N. Bulgakov,Almas F. Sadreev
标识
DOI:10.1103/physrevb.78.075105
摘要
Photonic crystal with defect layer forms directed continuum for electromagnetic waves. Defect rods in the vicinity of the defect layer interact with the continuum and give rise to scattering of ingoing waves. We derive quantum-mechanical analog of the non-Hermitian Hamiltonian of the open system with complex eigenvalues, which describes a scattering of electromagnetic waves by the defect rods. In this formalism a bound state in the continuum (BIC) can be easily found by the condition that one of the complex eigenvalues becomes real for variation of dielectric constant of the defect rods. We numerically find BICs with discrete frequencies belong to the continuum for different arrangements of the defects and show that they are localized around the defects.
科研通智能强力驱动
Strongly Powered by AbleSci AI