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Proceedings Paper

Femtosecond laser induced ripples and nanohole arrays on silicon
Author(s): L. Ling Ran; D. Gui Kong; Y. Gao; Y. Chao Li; W. Zhi Wu; Y. Chen Gao; Q. Chang
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Paper Abstract

We investigate the formation of ripple and nanohole induced by femtosecond laser pulses on the surface of silicon. Periodic ripples aligned perpendicular to the direction of laser polarization has been observed. The period of the periodic ripples decreases with the increasing pulse number. Particularly aperiodic ripples with orientation parallel to the laser polarization are formed depend on the number of laser pulses and energy. The nanohole arrays are formed on the overlapped areas of periodic and aperiodic ripples. The interference between the surface scattered or excited wave and the laser itself is proposed to explain the decrease of ripple period.

Paper Details

Date Published: 21 August 2014
PDF: 5 pages
Proc. SPIE 9233, International Symposium on Photonics and Optoelectronics 2014, 923311 (21 August 2014); doi: 10.1117/12.2067968
Show Author Affiliations
L. Ling Ran, Heilongjiang Univ. (China)
D. Gui Kong, Heilongjiang Univ. (China)
Y. Gao, Heilongjiang Univ. (China)
Y. Chao Li, Heilongjiang Univ. (China)
W. Zhi Wu, Heilongjiang Univ. (China)
Y. Chen Gao, Heilongjiang Univ. (China)
Q. Chang, Heilongjiang Univ. (China)

Published in SPIE Proceedings Vol. 9233:
International Symposium on Photonics and Optoelectronics 2014
Zhiping Zhou, Editor(s)

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