Analytical expressions for photonic band structure of periodic large arrays of identical waveguides for photonic crystals applications
Year: 2025
Type: article
Abstract: The Extended Coupled-Mode Theory, developed for infinite two-dimensional periodic arrays of identical coupled waveguides (photonic crystal lattices), has proven to be an effective numerical approach for the analysis of the photonic band structure of finite yet large photonic components (such as arrays of identical parallel waveguides, photonic crystal fibers, and arrays of identical coupled microcavities). In this work, we present a further development of this approach, leading to a full analytical coupled-mode description of the photonic band structure of two-dimensional photonic lattices. This comprehensive formalism is applicable to both step-index and graded-index waveguide arrays. It provides a fast, accurate and numerically stable analytical tool for the efficient analysis of the optical properties of complex photonic crystal systems.
Source: Optical and Quantum Electronics
Author: Vladislav Shteeman
Institution: Braude College of Engineering Karmiel
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,290
OpenAlex ID: W4412643587