Holographic fabrication of octagon graded photonic supercrystal and potential applications in topological photonics

Oliver Sale; Safaa Hassan; Noah Hurley; Khadijah Alnasser; Usha Philipose; Hualiang Zhang; Yuankun Lin

doi:10.1007/s12200-019-0941-2

Holographic fabrication of octagon graded photonic supercrystal and potential applications in topological photonics

Front Optoelectron. 2020 Mar;13(1):12-17. doi: 10.1007/s12200-019-0941-2. Epub 2019 Sep 23.

Authors

Oliver Sale¹, Safaa Hassan¹, Noah Hurley¹, Khadijah Alnasser¹, Usha Philipose¹, Hualiang Zhang², Yuankun Lin^{3

4}

Affiliations

¹ Department of Physics, University of North Texas, Denton, TX, 76203, USA.
² ECE Department, University of Massachusetts Lowell, Lowell, MA, 01854, USA.
³ Department of Physics, University of North Texas, Denton, TX, 76203, USA. yuankun.lin@unt.edu.
⁴ Department of Electrical Engineering, University of North Texas, Denton, TX, 76203, USA. yuankun.lin@unt.edu.

Abstract

Novel optical properties in graded photonic super-crystals can be further explored if new types of graded photonic super-crystals are fabricated. In this paper, we report holographic fabrication of graded photonic super-crystal with eight graded lattice clusters surrounding the central non-gradient lattices through pixel-by-pixel phase engineering in a spatial light modulator. The prospect of applications of octagon graded photonic super-crystal in topological photonics is discussed through photonic band gap engineering and coupled ring resonators.

Keywords: 2D photonic crystal; graded photonic supercrystal; holographic fabrication; photonic band structure.