A novel material consisting of porous glass framework with carbon impregnations was fabricated and its physical properties were examined. This material can be considered as a specific organosilicate compound with the organic phase on the walls of voids in the rigid silica matrix. Incorporation of different carbon quantities results in the shift of the optical absorption edge. Local heating by illumination with power light sources leads to the increase of carbon - incorporating material transparency. The produced organosilicate solids can thus act as effective registration media.