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Our work is focused on the development of an efficient class of scalable, low cost and integrated elements for light polarization control in the mid-infrared. We investigated vanadium dioxide (VO2) a thermocromic material showing a semiconductor to metal transition at 67°C as well as alpha-molybdenum trioxide, a Van der Waals material displaying strongly anisotropic behavior in the infrared. We will show the single materials spectral response in the IR range and then we will highlight how the use of combined multilayer structures can allow the tunability of spectral features of the resulting structure to get IR radiation management.
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Maria Cristina Larciprete, Sina Abedini Dereshgi, Marco Centini, Roberto Macaluso, Koray Aydin, "Tunable polar films for infrared radiation management," Proc. SPIE PC12430, Quantum Sensing and Nano Electronics and Photonics XIX, PC124301G (17 March 2023); https://doi.org/10.1117/12.2650729