Generation of metallic plasmon nanostructures in a thin transparent photosensitive copper oxide film by femtosecond thermochemical decomposition

P A Danilov,S P Umanskaya,E P Litovko,I N Saraeva,D A Zayarny,S I Kudryashov,N N Mel’Nik,A A Rudenko,R A Khmelnitskii,A A Ionin

doi:10.1063/1.4998127

Generation of metallic plasmon nanostructures in a thin transparent photosensitive copper oxide film by femtosecond thermochemical decomposition

P A Danilov, S P Umanskaya + Show 8 more

https://doi.org/10.1063/1.4998127

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Publication Date: Jan 1, 2017

Affiliation: P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow Institute of Physics and Technology, Moscow Engineering Physics Institute

#Copper Oxide Film #Transparent Copper + Show 8 more

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Abstract

Irradiation of optically transparent copper (I) oxide film covering a glass substrate with a tightly focused femtosecond laser pulses in the pre-ablation regime leads to film reduction to a metallic colloidal state via a single-photon absorption and its subsequent thermochemical decomposition. This effect was demonstrated by the corresponding measurement of the extinction spectrum in visible spectral range. The laser-induced formation of metallic copper nanoparticles in the focal region inside the bulk oxide film allows direct recording of individual thin-film plasmon nanostructures and optical-range metasurfaces.

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