Complex photonic band diagrams for finite-size photonic crystals with arbitrary defects
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Complex photonic band diagrams for finite-size photonic crystals with arbitrary defects
- 发表刊物：
- JOURNAL OF APPLIED PHYSICS
- 摘要：
- Based on an effective propagation constant and a frequency-dependent dielectric constant, the plane
wave method is extended to calculate the complex photonic band diagram and the density of states
for electromagnetic waves propagating in a two-dimensional finite structure with nonoverlapping
dielectric cylinders of arbitrary radii, which may be randomly embedded in a dielectric matrix. The
effective propagation constant is obtained by using the Twersky formula and the scattering matrix method. A case study shows that an embedded defect with optimal
radius in a finite photonic crystal can increase the first photonic band gap as compared to the similar
structure without the defect. This work is expected to provide a useful tool in determining the
photonic properties of a disorder dielectric medium with arbitrary embedded nanoparticles and
nanowires.
- 合写作者：
- Jiu Hui Wu, A. Q. Liu, L. K. Ang, et.al.
- 卷号：
- 101
- 页面范围：
- 053101
- 是否译文：
- 否
- 发表时间：
- 2007-03-01