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Figure 4 | Nanoscale Research Letters

Figure 4

From: Nanofabrication with Pulsed Lasers

Figure 4

Nanodot array fabrication. a A monolayer of spheres deposited on a thin alumina film is illuminated with a single laser pulse. b Near-field enhancement underneath the spheres leads to the parallel nanodrilling of the film. c A metal (gold in our case) is then deposited and the alumina membrane is dissolved in basic solution. d An ordered Au nanodot array is then obtained on the silicon substrate

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