Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/89378
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- Title
- Vibrations of microspheres probed with ultrashort optical pulses
- Related
- Optics letters, Vol. 34, No. 23 (2009), p.3740-3742
- DOI
- 10.1364/OL.34.003740
- Publisher
- Optical Society of America
- Date
- 2009
- Author/Creator
- Dehoux, T
- Author/Creator
- Kelf, T. A
- Author/Creator
- Gusev, V. E
- Author/Creator
- Tomoda, M
- Author/Creator
- Matsuda, O
- Author/Creator
- Wright, O. B
- Author/Creator
- Ueno, K
- Author/Creator
- Nishijima, Y
- Author/Creator
- Juodkazis, S
- Author/Creator
- Misawa, H
- Author/Creator
- Tournat, V
- Description
- We use ultrashort optical pulses to excite and detect vibrations of single silica spheres with a diameter of 5 μm placed at the surface of an acoustically mismatched substrate. In addition to the photoelastic detection of picosecond longitudinal acoustic pulses propagating inside the bulk, we detect gigahertz acoustic resonances of the sphere through probe beam defocusing. The mode frequencies are in close accord with those calculated from the elastic vibrations of a free sphere. We also record a resonant enhancement in the amplitude of specific modes of two touching spheres.
- Description
- 3 page(s)
- Resource Type
- journal article
- Organisation
- Macquarie University. Dept. of Physics and Engineering
- Identifier
- http://hdl.handle.net/1959.14/89378
- Identifier
- ISSN:1539-4794
- Identifier
- mq-rm-2009006093
- Language
- eng
- Full Text
- Reviewed
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