Control of Si-rich region inside a sodalime glass by parallel femtosecond laser focusing at multiple spots

Sakakura, Masaaki, Kurita, Torataro, Yoshimura, Kouhei, Fukuda, Naoaki, Shimotsuma, Yasuhiko and Miura, Kiyotaka (2015) Control of Si-rich region inside a sodalime glass by parallel femtosecond laser focusing at multiple spots. Applied Physics B, 119 (3), 485-492. (doi:10.1007/s00340-015-6061-9).

Abstract

Thermal modification and elemental distributions inside a sodalime glass were modified by parallel irradiation with focused 250 and 1 kHz femtosecond laser pulses at multiple spots. We found that the shape of a Si distribution was modified and the position of a Si-rich layer depended on the relative focal positions between 250 and 1 kHz laser pulses. We demonstrated the formation of a ribbon-shaped Si-rich glass of about 8 μm thickness and about 33 μm width by producing a line of a Si-rich layer by translating a glass sample perpendicular to the laser propagation axis. In addition, we simulated transient temperature distribution during laser exposure and discussed the role of 1 kHz laser irradiation in the modulation of elemental distributions.

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