Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5353406 | Applied Surface Science | 2014 | 4 Pages |
Abstract
Relief ripples with sub-diffraction periods (âλlas/3, λlas/4) were produced on a aluminum surface immersed in water and irradiated in a multi-filamentation regime by focused 744 nm femtosecond laser pulses with highly supercritical, multi-GW peak powers. For the VUV (8.5 eV) surface plasmon resonance on the wet aluminum surface, such small-scale surface nanogratings can be produced by high - second and third - optical harmonics, coming to the surface from the optical filaments in the water layer. Then, the sub-diffraction surface ripples may appear through interference of their transverse electric fields with the longitudinal electric fields of their counterparts, scattered on the surface roughness and appeared as the corresponding high-energy, high-wavenumber surface polaritons.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
A.A. Ionin, S.I. Kudryashov, S.V. Makarov, A.A. Rudenko, P.N. Saltuganov, L.V. Seleznev, D.V. Sinitsyn, E.S. Sunchugasheva,