| Issue |
Europhys. Lett.
Volume 38, Number 7, June I 1997
|
|
|---|---|---|
| Page(s) | 521 - 526 | |
| Section | Condensed matter: structure, thermal and mechanical properties | |
| DOI | https://doi.org/10.1209/epl/i1997-00277-9 | |
| Published online | 01 September 2002 | |
Interferometric study of selectively excited bubble capillary modes
1
Dipartimento di Elettronica, Università di Pavia - via Ferrata 1, 27100 Pavia, Italy
2
INFM, Sezioni di Pavia e Milano, Italy
3
Dipartimento di Chimica e Biochimica Medica, Università di Milano, via Saldini 50, 20133 Milano, Italy
4
Laboratorio di Informatica Medica e Servizio di Ingegneria Clinica, IRCCS Policlinico S. Matteo - 27100 Pavia, Italy
Received:
3
March
1997
Accepted:
17
April
1997
We present an experimental study of capillary oscillations of a bubble of gas in water. The oscillations are detected by a very sensitive interferometric technique and the modes are excited by an electric field. We observe, and theoretically demonstrate, that by properly choosing the symmetry of the field we can selectively excite modes of different order. We have studied the dependence of the characteristic frequency of the breathing mode, of the quadrupolar mode and of the octupolar mode on the bubble size. Our results are in remarkable agreement with the results of the current linearized hydrodynamic description of the bubble modes.
PACS: 68.10.-m – Fluid surfaces and fluid-fluid interfaces / 42.25.Hz – Interference
© EDP Sciences, 1997
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