MODIFICATION OF BINARY ALKALI-СONTAINING GLASSES BY FEMTOSECOND-LASER PULSES
In this study, conditions of inscription of birefringent nanoperiodical structures (nanogratings) in the bulk of binary 15K2O·85SiO2 and 20K2O·80SiO2 glasses by the femtosecond laser beam have been investigated. The dependence of optical retardance of the nanograting on the laser pulse number, energy and duration which were applied to inscribe it is determined. The effect of the modifying cation type on the formation of nanogratings is revealed.