Abstract

We report an experimental study on the synthesis of metal nanoparticles (NPs) with adjustable optical density based on surface plasmon resonance (SPR). Metal NPs prepared by laser ablation in liquid method and the effect of laser parameters on the size, distribution, wavelength of SPR of Ag, Au, and mixture of Ag-Au, and Ag core/Au shell NPs are investigated. Our results show that the adjustable SPR band can be achieved in each class of NPs which is suitable for adjustable optical window applications.

© 2014 Chinese Optics Letters

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