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C. ALBU1,2,* , C. LUCULESCU1, M. ZAMFIRESCU1
Ripples or periodical structures are obtained on nickel films by irradiation with femtosecond laser pulses working at both fundamental (775 nm) and frequency doubled (387 nm) wavelengths in air. Depending on the irradiation conditions, such as laser fluence, number of laser pulses or laser wavelength, different morphology and ripples periods has been obtained: Low Spatial Frequency LIPSS (LSFL) with a periodicity of about 240 to 650 nm, and High Spatial Frequency LIPSS (HSFL) with a periodicity from about 100 to 190 nm. Our experimental observations are complemented by calculated ripples period predicted by the classical interference theory and surface plasmon theory..
Femtosecond laser, LIPSS, Nickel.
C. ALBU, C. LUCULESCU, M. ZAMFIRESCU, Periodical structures induced by femtosecond laser on nickel in air, Optoelectronics and Advanced Materials - Rapid Communications, 8, 5-6, May-June 2014, pp.363-367 (2014).
Submitted at: Oct. 8, 2013
Accepted at: May 15, 2014
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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