Branch crossing behavior and interface states in 1D Inversion Symmetric Quaternary Photonic Crystals using Effective Medium Theory

2020/03/24 by Nicholas J. Bianchi, Bianchi, Nicholas J., L. M. Kahn +2
Agricultural and Biological Sciences · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Fern and Epiphyte Biology #Metamaterials and Metasurfaces Applications #Optics (physics.optics) #Photonic Crystals and Applications #physics.optics

paper · pdf · doi:10.48550/arxiv.2003.10684

arxiv created 2020/03/24 · openalex publication_date 2020/03/24 · arxiv updated 2020/03/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Effective medium theory is used to model a one dimensional lossy dielectric quaternary photonic crystal as a homogeneous slab. The unit cell of the original crystal is inversion symmetric with layer sequence ACBCA. The behavior of the branch frequency singularities in the effective refractive index is investigated as parameters in the layered structure change. A heterostructure composed of multiple photonic crystals is also modeled with effective medium theory. It is shown that the effective refractive index of such a structure possesses regions of normal dispersion that correspond to localized interface states within the overall regions of anomalous dispersion representing the photonic band gap.

Citations

• Inhibited Spontaneous Emission in Solid-State Physics and Electronics
• Determination of Effective Permittivity and Permeability of Metamaterials from Reflection and Transmission Coefficients

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