Abstract
Method of 3D processing of photosensitive glass (PhG) is demonstrated and researched in this work. Structural changes and phase transformation are initiated by CO2 laser radiation on defects, which were pre-generated in the bulk of the PhG by powerful picosecond Nd:YAG laser second harmonic pulses. Reversible phase transformations were realized inside PhG. CO2 laser irradiation allowed us to avoid completely heat treatment step in a furnace. As a result, direct writing of structures was implemented. As a part of the research, we have also carried out processes of crystallization visualization and return to amorphous state which allowed us to learn the kinetic of phase transformations in the bulk of the glass material.
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