Layer-by-layer Assembled Nanoparticles on Flexible Substrates: Toward Deformable Anti-Reflection Coatings

摘要

Optical systems in nature typically capitalize on the properties of lenses that are flexible and fluidic, allowing for variable focal length through changes in refractive index and/or shape. For example, crystalline fisheye lenses generate a varying index of refraction via an inhomogeneous gradient of protein and water, which allows for a wide field of view and control of spherical aberration. Recently, much attention has been directed to fabricate deformable lenses that mimic the fisheye’s dynamically controllable field of view. However, at certain wavelengths these deformable lenses reflect the incoming light due to their high refractive index relative to air. Anti-reflection (AR) coatings can be deposited onto the surface of deformable lens to increase the transmittance and eliminate the glare.