Formation mechanism of self-organized nanogratings on a titanium surface using femtosecond laser pulses

Md. Shamim Ahsan; Man Seop Lee

doi:10.1117/1.OE.51.12.121815

26 September 2012 Formation mechanism of self-organized nanogratings on a titanium surface using femtosecond laser pulses

Md. Shamim Ahsan, Man Seop Lee

Author Affiliations +

Optical Engineering, Vol. 51, Issue 12, 121815 (September 2012). https://doi.org/10.1117/1.OE.51.12.121815

Abstract

We demonstrate the formation of self-organized nanogratings on a titanium surface under the irradiation of a single-beam femtosecond laser. Self-formed, periodic nanogratings are printed on a titanium surface by varying the average pulse energy, pulse width, and number of laser pulses in each spot. The direction of the nanogratings is perpendicular to the direction of the laser polarization. The nanograting period shows obvious dependence on the average pulse energy, pulse width, and number of laser pulses. The period of the self-organized nanogratings shows an increasing trend with the increase of laser energy and pulse width, and a decreasing trend with an increase of number of applied laser pulses. We qualitatively explain the formation mechanism of the self-organized nanogratings and their dependence on various laser parameters.

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Md. Shamim Ahsan and Man Seop Lee "Formation mechanism of self-organized nanogratings on a titanium surface using femtosecond laser pulses," Optical Engineering 51(12), 121815 (26 September 2012). https://doi.org/10.1117/1.OE.51.12.121815

Published: 26 September 2012

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