Two-Dimensional Ferroelectric Photonic Crystals: Optics and Band Structure

TL;DR

This paper investigates the optical properties and band structure of 2D and 3D ferroelectric photonic crystals, specifically LiNbO3-based structures, revealing how their reflection and transmission spectra relate to photonic gaps and diffraction phenomena.

Contribution

It provides a theoretical analysis of the optical behavior and band structure of ferroelectric photonic crystals, including calculations for LiNbO3 structures and their spectral features.

Findings

Reflection spectra show features related to diffraction onset.

Transmission spectra reveal additional reflectance structures at high incidence angles.

Photonic band calculations elucidate the relation between structure and optical properties.

Abstract

In this report we present an investigation of the optical properties and band structure calculations for the photonic structures based on the functional materials- ferroelectrics. A theoretical approach to the optical properties of the 2D and 3D photonic crystals which yields further insight in the phenomenon of the reflection from different families of lattice planes in relation to the presence of photonic gaps or photonic bands. We calculate the photonic bands and optical properties of LiNbO3 based photonic crystals. Calculations of reflection and transmission spectra show the features correspond to the onset of diffraction, as well as to additional reflectance structures at large values of the angle of incidence.