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ROBERTO MACALUSO

Polycrystalline MoO3 films fabricated by pulsed laser deposition for infrared polarization manipulation

  • Authors: Ceneda, Daniele; Lupo, Federico Vittorio; Casaletto, Maria Pia; Macaluso, Roberto; Centini, Marco; Abedini Dereshgi, Sina; Aydin, Koray; Larciprete, Maria Cristina
  • Publication year: 2022
  • Type: Contributo in atti di convegno pubblicato in rivista
  • OA Link: http://hdl.handle.net/10447/578705

Abstract

We performed infrared optical characterization of polycrystalline MoO3 films deposited by pulsed laser deposition on fused silica substrates. Several samples have been fabricated using different parameters such as temperature and oxygen pressure. Our analysis shows that under appropriate fabrication conditions it is possible to obtain a dominant -phase film, with a well-defined, normal to surface (z-axis) orientation. These results are confirmed by reflection spectra performed at 45° incidence angle revealing a strong modulation of the sharp z-phonon Reststrahlen band as a function of the incident field linear polarization.