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Proceedings Paper

Extraordinary enhanced absorptivity of gold surface ablated with femtosecond laser pulses
Author(s): A. Y. Vorobyev; Chunlei Guo; V. S. Makin; N. G. Kokody; V. M. Kuzmichev
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Paper Abstract

Surface relief topography and absorptivity enhancement due to surface structural modification induced by multi-pulse femtosecond laser ablation of a bulk gold sample are studied. It is shown that the enhancement of the absorptivity in multi-pulse ablation is caused by a combination of nano-, micro-, macro-structural surface modifications. Femtosecond laser-induced surface nanostructuring is found to be a significant factor enhancing the absorptivity. This absorptivity enhancement of the nano-structured surface is explained as a result of both multiple light reflections from produced ramified gold surface and resonant linear and nonlinear light absorption by coupled nanostructures (spheres, wires, cones).

Paper Details

Date Published: 5 March 2008
PDF: 6 pages
Proc. SPIE 7009, Second International Conference on Advanced Optoelectronics and Lasers, 700913 (5 March 2008); doi: 10.1117/12.793443
Show Author Affiliations
A. Y. Vorobyev, The Institute of Optics, Univ. of Rochester (United States)
Chunlei Guo, The Institute of Optics, Univ. of Rochester (United States)
V. S. Makin, Research Institute for Complex Testing of Optoelectronic Devices (Russia)
N. G. Kokody, V.N. Karazin Kharkov National Univ. (Ukraine)
V. M. Kuzmichev, V.N. Karazin Kharkov National Univ. (Ukraine)


Published in SPIE Proceedings Vol. 7009:
Second International Conference on Advanced Optoelectronics and Lasers

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