Fig. 2: Numerical simulations of the microlens and colour pixel.
From: High-resolution light field prints by nanoscale 3D printing
a, b Raytracing simulation of the microlens for field angles θ = {0, 16}° that select the centre and corner pixel positions, respectively. c Simulated normalized electric field intensity distribution of the x-y focal plane at z = 37 µm, for θ = 0° and wavelengths λ = {450, 532, 635} nm, respectively. The focal spot size was calculated as the full width at half maximum (FWHM) of the normalized electric field intensity profile of the horizontal slice y = 0, indicated by the yellow dashed line. d Plot of the simulated FWHM vs. θ for the respective wavelengths. e Simulated transmittance spectra of a representative pixel (which comprised 5 × 5 nanopillars with diameter D = 0.3 µm, height H = 1.2 µm, pitch S = 1 µm) for viewing angles ϕ = {0, 8, 16}°.
