Comments on: Spotlight Publication: “Multichromatic porous silicon RGB rugate filters for use in smartphone biosensing” published in Applied Optics /vinse/2026/06/21/spotlight-publication-multichromatic-porous-silicon-rgb-rugate-filters-for-use-in-smartphone-biosensing-published-in-applied-optics/ VINSE Thu, 25 Jun 2026 18:35:35 +0000 hourly 1