Noble metallic nanostructures: preparation, properties, applications

The process of formation and the characteristics are studied of noble metal nanostructures created by pulsed laser ablation in vacuum. Femtosecond (fs) and nanosecond (ns) laser systems lasing at different wavelengths are used. Several different modifications of the pulsed lased deposition (PLD) tec...

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Bibliographic Details
Published in:Journal of physics. Conference series 2014-01, Vol.514 (1), p.12024-8
Main Authors: Atanasov, P A, Nedyalkov, N N, Dikovska, A Og, Nikov, Ru, Amoruso, S, Wang, X, Bruzzese, R, Hirano, K, Shimizu, H, Terakawa, M, Obara, M
Format: Article
Language:English
Subjects:
Alloying
Bimetals
Deposition
Femtosecond pulsed lasers
Gold
Laser ablation
Laser beam annealing
Lasers
Molecular dynamics
Nanostructure
Noble metals
Optical emission spectroscopy
Optical properties
Physics
Pulsed lasers
Raman spectroscopy
Silver
Spectrum analysis
Substrates
Thin films
Tuning
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Summary:The process of formation and the characteristics are studied of noble metal nanostructures created by pulsed laser ablation in vacuum. Femtosecond (fs) and nanosecond (ns) laser systems lasing at different wavelengths are used. Several different modifications of the pulsed lased deposition (PLD) technique, as off-axis deposition and glancing angle deposition configurations are used to create nanostructures. Laser annealing of single or bimetal thin films is used to fabricate alloyed nanostructures. The possibility is demonstrated of tuning the optical properties of gold nanostructures on flexible substrates. Different experimental techniques, as fast photography, optical emission spectroscopy, FE-SEM, AFM, TEM, and Raman spectroscopy are applied to characterize the noble metallic nanostructures produced. The optical spectra of the Au and Ag nanostructures are also studied experimentally and theoretically. The theoretical simulation methods used are: molecular dynamic (MD), finite difference time domain (FDTD) and a method based on the generalized multi-particle Mie (GMM) theory. Applications of noble metal nanostructures to surface enhanced Raman spectroscopy (SERS) and biophotonics are briefly considered.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/514/1/012024