# Optimized White Reflectance in Photonic Network Structures

## TL;DR

This paper presents a simple algorithm to generate 3D disordered photonic networks inspired by beetle scales, revealing how structural parameters influence scattering efficiency and enabling the design of superior white reflectance materials.

## Contribution

Introduces a novel algorithm for creating anisotropic photonic networks inspired by beetle scales, linking structure to optical performance.

## Key findings

- Structures can surpass beetle reflectance with less material
- Structural anisotropy and filling fraction are key to scattering efficiency
- Numerical simulations validate the design approach

## Abstract

Three-dimensional disordered networks are receiving increasing attention as versatile architectures for highly scattering materials. However, due to their complex morphology, little is still known about the interplay between their structural and optical properties. Here, we describe a simple algorithm that allows to generate photonic network structures inspired by that of the Cyphochilus beetle, famous for the bright white reflectance of its thin cuticular scales. The model allows to vary the degree of structural anisotropy and filling fraction of the network independently, revealing the key contribution of these two parameters to the overall scattering efficiency. Rigorous numerical simulations show that the obtained structures can exceed the broadband reflectance of the beetle while using less material, providing new insights for the design of advanced scattering materials.