Observation of total omnidirectional reflection from a one-dimensional dielectric lattice

TL;DR

This paper demonstrates that a one-dimensional dielectric lattice can achieve total omnidirectional reflection of light, verified through experiments with multilayer structures showing over 99% reflection across a wide range of angles.

Contribution

It provides the first experimental verification of total omnidirectional reflection in a one-dimensional dielectric lattice using standard optical technology.

Findings

Achieved over 99% reflection from 0 to 86 degrees at 632.8 nm

Verified theoretical predictions with experimental multilayer structures

Stimulates further research on photonic crystals and emission control

Abstract

We show that under certain conditions one-dimensional dielectric lattice possesses total omnidirectional reflection of incident light. The predictions are verified experimentally using Na3AlF6/ZnSe multilayer structure developed by means of standard optical technology. The structure was found to exhibit reflection coefficient more then 99% in the range of incident angles 0-86 (degree) at the wavelength of 632.8 nm for s-polarization. The results are believed to stimulate new experiments on photonic crystals and controlled spontaneous emission.