Figure 2 | Scientific Reports

Figure 2

From: Rational Design of Photonic Dust from Nanoporous Anodic Alumina Films: A Versatile Photonic Nanotool for Visual Sensing

Figure 2

Colour tuneability in NAA-DBRs.

(a) Digital pictures of NAA-DBR photonic films produced in this study by modifying Tp and Tan (NB: aluminium substrates were electrochemically anodised through a circular window of 1 cm in diameter). (b) Schematic illustration showing how the different fabrication parameters make it possible to tune the colour of the resulting NAA-DBR film across the UV-visible-NIR spectrum by engineering the interaction light-matter.

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