Laser-Induced Formation of Molecular Barriers in Porous Glass
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The possibility of creating physical barriers with various degrees of permeability in porous glass (PG) plates by local variation in the density of the porous structure of the matrix is demonstrated. The compaction of PG in the volume is provided by exposure to femtosecond laser pulses, while the surface impermeability of the compaction areas is provided by exposure to radiation of the CO2 laser. This approach to control the density of the PG structure makes it possible to create molecular barriers that represent a physical and/or chemical boundary for molecules located in a porous matrix (with controlled permeability). The discussed technology of the local porosity control opens the way to designing integral photon, fluid, and other types of devices based on PG plates.
Keywordsporous glass microdiagnostic device femtosecond laser pulses CO2 laser molecular barrier
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- 3.Antropova, T.V., Kalinina, S.V., Kostyreva, T.G., Drozdova, I.A., and Anfimova, I.N., Peculiarities of the fabrication process and the structure of porous membranes based on two-phase fluorine-and phosphorus-containing sodium borosilicate glasses, Glass Phys. Chem., 2015, vol. 41, no. 1, pp. 14–25.CrossRefGoogle Scholar
- 9.Antropova, T., Petrov, D., and Yakovlev, E., Porous glasses as basic matrixes of micro-optical devices: Effect of composition and leaching conditions of the initial phase separated glass, Phys. Chem. Glasses: Eur. J. Glass Sci. Technol., Part B, 2007, vol. 48, no. 5, pp. 324–327.Google Scholar
- 11.Rabinovich, V.A. and Khavin, Z.Ya., Kratkii khimicheskii spravochnik (Concise Chemical Reference Book), Leningrad: Khimiya, 1977.Google Scholar