Title :
Effect of surface structural modification on absorptivity of gold in multi-pulse femtosecond laser ablation
Author :
Vorobyev, A.Y. ; Guo, Chunlei ; Makin, V.S. ; Kokody, N.G. ; Kuzmichev, V.M.
Author_Institution :
Inst. of Opt., Rochester Univ., NY, USA
Abstract :
Surface relief topography and surface absorptivity enhancement of a bulk gold sample following multi-pulse femtosecond laser ablation are studied. Peculiarities of the nano-structured surface absorptivity enhancement are explained as a result of both multiple light reflections on produced ramified gold surface and resonant light absorption by coupled nanostructures (wires, spheres, cones).
Keywords :
gold; high-speed optical techniques; laser ablation; light reflection; nanowires; surface topography; surface treatment; Au; cones; coupled nanostructures; femtosecond laser ablation; gold absorptivity; multiple light reflections; multipulse laser ablation; ramified gold surface; resonant light absorption; spheres; surface absorptivity enhancement; surface relief topography; surface structural modification; wires; Absorption; Gold; Laser ablation; Nanostructures; Optical coupling; Optical reflection; Resonance; Surface emitting lasers; Surface topography; Wires;
Conference_Titel :
Advanced Optoelectronics and Lasers, 2005. Proceedings of CAOL 2005. Second International Conference on
Print_ISBN :
0-7803-9130-6
DOI :
10.1109/CAOL.2005.1553927
