Acoustic Vibrations in Nanosized Gold-Shell Particles

Shan, Xinyan; Zhang, X.; Mazurenko, Dmitry A.; Blaaderen, Alfons van; Dijkhuis, Jaap I.; Hudert, Florian; Dekorsy, Thomas

Acoustic Vibrations in Nanosized Gold-Shell Particles

Dateien

JPCS_Shan_2008.pdfGröße: 230.13 KBDownloads: 239

Datum

2007

Autor:innen

Shan, Xinyan

Zhang, X.

Mazurenko, Dmitry A.

Blaaderen, Alfons van

Dijkhuis, Jaap I.

Hudert, Florian

Dekorsy, Thomas

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Journal of physics : Conference Series. 2007, 92. Available under: doi: 10.1088/1742-6596/92/1/012035

Zusammenfassung

We demonstrate and discuss acoustic vibrations in spherical shell particles. The particles consist of 38-nm-thick gold shells, sandwiched between an inner silica core of 456 nm in diameter and an outer silica shell of 10 nm in thickness. Employing standard and asynchronous optical sampling (ASOPS) ultrafast pump-probe experiments, we excite acoustic vibrations of the shells and detect the oscillations via modulations of the optical reflectivity. Two kinds of vibrations were excited and observed. One oscillation with 400 ps period corresponds to the prediction of Lamb theory for breathing modes of free thin gold shells. The other oscillation with 25ps-period corresponds to resonant longitudinal thickness vibrations of the gold shells. At later times, echoes appear corresponding to the travel time through the silica core.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

SHAN, Xinyan, X. ZHANG, Dmitry A. MAZURENKO, Alfons van BLAADEREN, Jaap I. DIJKHUIS, Florian HUDERT, Thomas DEKORSY, 2007. Acoustic Vibrations in Nanosized Gold-Shell Particles. In: Journal of physics : Conference Series. 2007, 92. Available under: doi: 10.1088/1742-6596/92/1/012035

BibTex

@article{Shan2007Acous-4690,
  year={2007},
  doi={10.1088/1742-6596/92/1/012035},
  title={Acoustic Vibrations in Nanosized Gold-Shell Particles},
  volume={92},
  journal={Journal of physics : Conference Series},
  author={Shan, Xinyan and Zhang, X. and Mazurenko, Dmitry A. and Blaaderen, Alfons van and Dijkhuis, Jaap I. and Hudert, Florian and Dekorsy, Thomas}
}

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