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Characterization of surface plasmons inducing nanoablation on nonmetallic materials excited with intense femtosecond laser pulses
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Paper Abstract

Intense near-fields of surface plasmon polaritons (SPPs) excited with femtosecond (fs) laser pulses can sculpt nanometer-size structures on various kinds of solid materials through ablation. To control the formation, we need to understand the characteristic properties of the SPPs such as plasmon wavelength, damping, and spatial modes. Recently we succeeded to measure surface plasmon resonance curves of Si gratings with the intense p-polarized 100-fs laser pulses and observe the nanoablation on the surface. The experimental results and calculation for model targets have shown that SPPs with low internal damping can be excited with the fs pulse at higher fluence. This indicates that the propagation length of SPPs on Si can be controlled by the laser fluence of fs laser pulses.

Paper Details

Date Published: 4 March 2019
PDF: 7 pages
Proc. SPIE 10908, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XIX, 109080U (4 March 2019); doi: 10.1117/12.2516115
Show Author Affiliations
Godai Miyaji, Tokyo Univ. of Agriculture and Technology (Japan)
Masato Hagiya, Tokyo Univ. of Agriculture and Technology (Japan)
Daiki Moriyama, Tokyo Univ. of Agriculture and Technology (Japan)


Published in SPIE Proceedings Vol. 10908:
Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XIX
Peter R. Herman; Michel Meunier; Roberto Osellame, Editor(s)

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