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5 March 2021 Fabrication of terahertz compounds made of nanoporous SiO2
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Since nanoporous three-dimensional structure based on SiO2 has been studied as a THz optical material [Optical Materials Express 10(9), 2100-2113 (2020)], in this work we study its fabrication properties. Porous SiO2 is represented by porous opal matrixes [Optical Materials 49, 208–212 (2015)], which are based on globules of amorphous SiO2 [Nano 8(4), 1350036 (2013)]. By the thermal treatment, the material is able to achieve materials with different stoichiometric composition and porosity, minimizing an amount of residual water, and obtaining pre-determined physics properties of material. We fabricated couple of cylindrical lenses and flat plates made of abovementioned nanoporous SiO2. We showed that simple-form components could be easily fabricated by grinding, while mechanical processing strategy depends on the annealing temperature used and the material strength.
Conference Presentation
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Vladislav E. Ulitko, Arsenii A. Gavdush, Arsen K. Zotov, Vladimir M. Masalov, Gennadiy A. Komandin, Vladimir N. Kurlov, and Kirill I. Zaytsev "Fabrication of terahertz compounds made of nanoporous SiO2", Proc. SPIE 11685, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIV, 116851R (5 March 2021);

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