Figure 7.

Optical absorption spectrum of the Au nanocondensates produced by laser ablation on Au target at 1.4 × 1012 W/cm2in vacuum for 300, 600, and 900 pulses showing the surface plasmon absorbance shifts from near 525 to 550 nm for the samples produced by more pulses (cf. text)

Huang et al. Nanoscale Research Letters 2009 4:1286-1296   doi:10.1007/s11671-009-9394-7