Large third-order optical nonlinearity in Au:TiO2 composite films measured on a femtosecond time scale

The wavelength dependence of the third-order nonlinear optical susceptibilities, χ(3), of the Au:TiO2 composite films with Au concentration varying from 15% to 60% (volume fraction), was measured by a degenerate four-wave mixing (DFWM) technique using a probe laser with a pulse width of 200 fs. It w...

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Veröffentlicht in:	Applied physics letters 1998-04, Vol.72 (15), p.1817-1819
Hauptverfasser:	Liao, H. B., Xiao, R. F., Wang, H., Wong, K. S., Wong, G. K. L.
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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