Nanoparticle metal films were prepared using nanosecond and femtosecond pulsed laser deposition in vacuum. The equivalent solid-density thickness of films was measured using a quartz crystal deposition monitor. A Langmuir ion probe was used to record the ion time-of-flight signal, from which the ion fluence and energy distribution were measured. Scanning transmission electron microscopy showed that films contain nanoparticles with diameter in the range of 1- 40 nm. The optical absorption spectra of nanoparticle films showed the expected surface plasmon resonance, which shifts to longer wavelength and increases in magnitude as the equivalent thickness was increased.
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