Formation of microtower structures on liquid metal surfaces under nanosecond laser ablation

A. N. Panchenko; N. M Bulgakova; M. A. Shulepov; A. E. Tel'minov

doi:10.1117/12.878442

7 February 2011 Formation of microtower structures on liquid metal surfaces under nanosecond laser ablation

A. N. Panchenko, N. M Bulgakova, M. A. Shulepov, A. E. Tel'minov

Proceedings Volume 7994, LAT 2010: International Conference on Lasers, Applications, and Technologies; 79940N (2011) https://doi.org/10.1117/12.878442
Event: International Conference on Coherent and Nonlinear Optics (ICONO 2010) and International Conference on Lasers, Applications and Technologies (LAT 2010), 2010, Kazan, Russian Federation

Abstract

Formation of stable micro-protrusions and microstructures ("microtowers") on surface of liquid metals during multipulse irradiation by UV and IR lasers in different ambient gases was discovered. The rates of the structure formation have been measured which can reach 5 - 20 μm/pulse depending on the metal and ambient gas sort. Single micro-protrusions 1-2 mm in length were formed with diameter approximately two times greater than the focal spot size. The possibility to control the microstructure shape is shown and their potential applications are demonstrated.

Citation Download Citation

A. N. Panchenko, N. M Bulgakova, M. A. Shulepov, and A. E. Tel'minov "Formation of microtower structures on liquid metal surfaces under nanosecond laser ablation", Proc. SPIE 7994, LAT 2010: International Conference on Lasers, Applications, and Technologies, 79940N (7 February 2011); https://doi.org/10.1117/12.878442

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