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Título

Large enhancement of the third-order optical susceptibility in Cu-silica composites produced by low-energy high-current ion implantation

AutorOlivares Villegas, José ; Requejo-Isidro, José; Coso López, Raúl del; Nalda, R. de; Solís Céspedes, Javier ; Afonso, Carmen N. ; Stepanov, A. L.; Hole, D.; Townsend, Paul D.; Naudon, A.
Palabras claveCopper
Silicon compounds
Nanostructured materials
Composite materials
Fecha de publicación15-jul-2001
EditorAmerican Institute of Physics
CitaciónJournal of Applied Physics 90(2): 1064 (2001)
ResumenLow-energy high-current ion implantation in silica at a well-controlled substrate temperature has been used to produce composites containing a large concentration of spherical Cu clusters with an average diameter of 4 nm and a very narrow size distribution. A very large value for the third-order optical susceptibility, (3) = 10–7 esu, has been measured in the vicinity of the surface plasmon resonance by degenerate four-wave mixing at 585 nm. This value is among the largest values ever reported for Cu nanocomposites. Additionally, the response time of the nonlinearity has been found to be shorter than 2 ps. The superior nonlinear optical response of these implants is discussed in terms of the implantation conditions.
Descripción3 pages, 3 figures, 1 table.-- PACS: 61.46.+w; 78.67.Bf; 42.65.An; 42.65.Hw; 61.72.Ww; 61.80.Jh; 73.22.Lp
Versión del editorhttp://dx.doi.org/10.1063/1.1379772
URIhttp://hdl.handle.net/10261/21781
DOI10.1063/1.1379772
ISSN0021-8979
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