Confined photon modes with triangular symmetry in hexagonal microcavities in 2D photonic Crystals

TL;DR

This paper investigates confined photon modes with triangular symmetry in hexagonal microcavities within 2D photonic crystals, combining theoretical modeling and experimental validation to understand their spectral properties.

Contribution

The study introduces a semiclassical plane-wave model that accurately predicts eigenfrequencies of confined photon modes considering cavity size and film thickness, emphasizing triangular symmetry.

Findings

Triangular symmetry modes align better with experimental data.

Eigenfrequencies depend on cavity size and film thickness.

The model effectively predicts optical emission spectra.

Abstract

We present theoretical and experimental studies of the size and thickness dependencies of the optical emission spectra from microcavities with hexagonal shape in films of two-dimensional photonic crystal. A semiclassical plane-wave model, which takes into account the electrodynamic properties of quasi-2D planar photonic microcavity, is developed to predict the eigenfrequencies of the confined photon modes as a function of both the hexagon-cavity size and the film thickness. Modes with two different symmetries, triangular and hexagonal, are critically analyzed. It is shown that the model of confined photon modes with triangular symmetry gives a better agreement between the predicted eigenmodes and the observed resonances.