Figure 3.

Z-scan traces of samples A to D under laser intensity of I0= 3.54 × 1011W/cm2 at the focal point. The open and closed Z-scan traces are shown in (a,b,c,d) and (e,f,g,h), respectively. Black squares are the experimental data and the solid lines are the fitting curves.

Zhang et al. Nanoscale Research Letters 2014 9:28   doi:10.1186/1556-276X-9-28
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