The spectral-luminescent properties of the synthesized bismuth-containing quartz-like glass exposed to heat treatment have been studied. The appearance of the thermoinduced bismuth centers of...

Bismuth-containing high-silica glasses (BCHSGs) based on the matrices of high-silica nanoporous glasses have been synthesized. The structure of BCHSG plates has been investigated by means of the IR spectroscopy method in the frequency range 4000–400 cm⁻¹. The bands corresponding to vibrations of the Bi-O bonds in structural units [BiO₃] and [BiO₆] were found on the spectral transmission curves of the synthesized BCHSGs. Besides, peaks corresponding to the presence of the α-Bi₂O₃ phase in the glass were revealed. It has been established that, depending on the BCHSG thermal treatment and the bismuth concentration in glass, changes of the glass structure and formation of Bi-O-Si bonds take place.

The luminescence properties of bismuth-containing high-silica glass obtained after impregnating matrices of porous glass in nitrate solutions of bismuth nitrate pentahydrate for 24–48 h...

Photochromic quartz-like glasses (PCQGs) based on of high-silica porous glasses have been synthesized. The structure of PCQG plates have been investigated using the electron microscopy methods. Their optical properties (light transmission in the visible spectral range) before and after UV laser irradiation have also been investigated. It was demonstrated that a microcrystalline phase of silver halide had been formed in the bulk phase of the synthesized PCQG. Peaks of the plasmon resonance of quasi-metallic silver nanoparticles were founded on the spectral dependences of the optical density of PCQG subjected by UV laser irradiation.