Fast 3D laser-induced reversible phase-structure modification of photostructurable glass
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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.
KeywordsPhotostructurable glass Foturan Picosecond laser pulses CO2 laser radiation Phase transformation
This work was supported by the grant from leading universities of the RF (subsidy 074-U01) and the RSF Agreement No. 14-12-00351.
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