REFLECTANT PHOTONIC CRYSTALS PRODUCED VIA POROUS-ALUMINA-ASSISTED-ANODIZING OF Al/Nb AND Al/Ta SYSTEMS

Andrei Pligovka ()
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Andrei Pligovka: Research and Development Laboratory 4.10 “Nanotechnologies”, Belarusian State University of Informatics and Radioelectronics, Brovki Str. 6, Minsk 220013, The Republic of Belarus

Surface Review and Letters (SRL), 2021, vol. 28, issue 07, 1-7

Abstract: The development of new nanomaterials with controlled characteristics for nanophotonics is of great relevance. In this work, photonic crystals with reflectance at the wavelength of 690nm and the value of 28% were formed by porous-alumina-assisted-anodizing of system Al/Ta on Si wafer. By selecting improved anodizing modes of system Al/Nb on glass, the reflectance was increased to 42% at the wavelength of 340nm. This result shows the high promise of the proposed methods and in the future will significantly improve the result by trying two- or three-stage methods of porous-alumina-assisted-anodizing, nanoimprint stamps and optimization of the anodizing modes for any wavelengths.

Keywords: Tantalum oxide; niobium oxide; porous anodic alumina; optical reflectance; nanostructured materials; anodization; anodic aluminum oxide (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1142/S0218625X21500554

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