Localized surface plasmon resonances in the ultraviolet from large scale nanostructured aluminum films

Jérôme Martin (1) , Julien Proust (1) , Davy Gérard (1) , Jerome Plain (1)

1 LNIO - Laboratoire de Nanotechnologie et d'Instrumentation Optique

We report on a straightforward preparation method to obtain a dense layer of quasi-spherical aluminum nanoparticles over a large area. The method is based on rapid thermal annealing of a thin aluminum film deposited on a super-repellent substrate. Diameters ranging from 2 to 15 nm are obtained by varying the film thickness. Aluminum nanoparticles exhibit well-defined localized surface plasmon resonances in the ultraviolet range as revealed by extinction measurements and confirmed by Mie theory.

Keywords: Electron beam lithography; Localized surface plasmon resonance; Mie theory; Scanning electron microscopy; Surface enhanced Raman spectroscopy; Thin films

Domains: Optics / Photonic; Micro and nanotechnologies/Microelectronics

Jérôme Martin, Julien Proust, Davy Gérard, Jerome Plain. Localized surface plasmon resonances in the ultraviolet from large scale nanostructured aluminum films. Optical Materials Express, 2013, 3 (7), pp.954. ⟨10.1364/OME.3.000954⟩. ⟨hal-02380677⟩