▎ 摘　　要

NOVELTY - Optical lens structure comprises first optically transparent material 140a having first refractive index and first thickness that is approximately half-wavelength of a center wavelength of incident light. A second optically transparent material 150a coupled to the first optically transparent material. The second optically transparent material defining a multiple nano voids and having second refractive index that is lower than the first refractive index, and a second thickness that is approximately a quarter-wavelength of a center wavelength of incident light. The second optically transparent material includes concentration of the multiple nano voids per unit volume that is approximately 10-90%. USE - Optical structure. ADVANTAGE - The optical lens structure reduces unwanted gas-phase reactions and improves the deposited material's uniformity across the substrate. DESCRIPTION OF DRAWING(S) - The drawing shows schematic view of the optical structure. Optical component (130) First optically transparent material (140a) Second optically transparent materials (150a) Nanovoid stack ( 155)