Fluid Cells Fabrication in Sol-Gel and Porous Glass

We investigate laser treatment regimes suitable for the fabrication of the isolated cells in a porous silica glass and a sol-gel film. Three-dimensional structures are produced as a result of the porous glass densification induced by femtosecond laser pulses. We also demonstrate that CO2 laser can be used to form such structures in the sol-gel film deposited on the glass. In the porous glass, barriers with various permeability were created, which were used as walls in fluid cells. Laserinduced microrelief formation on the surface of the sol-gel film provides isolation for the separated porous cells. The impermeability of porous cells is tested by impregnation them with different dyes (rhodamine 6G, fuchsine, etc.).