Clusters of closely spaced gold nanoparticles as a source of two-photon photoluminescence at visible wavelengths

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/192793

Title: Clusters of closely spaced gold nanoparticles as a source of two-photon photoluminescence at visible wavelengths
Author(s): Ueno, Kosei; Juodkazis, Saulius; Mizeikis, Vygantas; Sasaki, Keiji; Misawa, Hiroaki
Abstract: A study was conducted to demonstrate clusters of closely spaced gold nanoparticles as a source of two-photon photoluminescence at visible wavelengths. These homogeneous clusters of gold nanoparticles were fabricated, using electron-beam lithography (EBM) and vacuum deposition techniques. It was found that photoluminescence from gold is due to radiative recombination, following interband electronic transitions between the electronic bands. Gold nanoparticles and rough surfaces exhibited photoluminescence quantum yields significantly, due to local enhancement of the localized surface plasmon (LSP) near-field. Large blocks of gold nanoparticles were also fabricated, to demonstrate their utilization for the creation of an optically active material.
Publication type: Journal article
Source: Advanced Materials, Vol. 20, no. 1 (Jan 2008), pp. 26-30
Publication year: 2008
FOR Code(s): 0303 Macromolecular and Materials Chemistry; 0904 Chemical Engineering; 0912 Materials Engineering
Keyword(s): Electron beam lithography; Gold nanoparticles; Photoluminescence; Wavelength
Publisher: Wiley-VCH Verlag
ISSN: 0935-9648
Publisher URL: http://dx.doi.org/10.1002/adma.200602680
Peer reviewed