Fig. 4: Optical properties of TiO2 PER thin films.
From: Thermally-curable nanocomposite printing for the scalable manufacturing of dielectric metasurfaces
a Refractive index (dashed lines) and extinction coefficient (solid lines) according to TiO2 nanoparticle concentration following solvent removal. b SEM image of a spin-coated 80% TiO2 nanoparticle layer on a glass substrate. Optical properties of TiO2 PER thin films: (c) measured refractive index and extinction coefficient and (d) simulated transmission of 80 wt% PER. The transmission is simulated at λ = 532 nm. e Refractive index and (f) simulated transmission of 89 wt% PER. The transmission is simulated at λ = 635 nm
