Fabrication of Nearly-Hyperuniform Substrates by TailoredDisorder for Photonic Applications

摘要

Disordered optical substrates play a key role in photonic applications.Furthermore, structures of correlated, in particular hyperuniform, disorderare an emerging new class of photonic material enabling new ways of k-spaceengineering. Yet, there are little to no feasible technologies that allow fabricationof tailored disordered structures to facilitate a tailored optical response.This work reports on a scalable method to fabricate substrates of tailoredcorrelated disorder by self-stabilized colloid deposition. Easy-to-accessexperimental parameters allow to tune lateral and vertical statistics of thedisordered patterns. In addition, a model is presented that allows accurateprediction of mono- as well as polydisperse particle patterns. Correlation ofdisorder of the prepared patterns is investigated by means of the structurefactor and optical measurements.