Trapping an Intensely Bright, Stable Sonoluminescing Bubble

Raúl Urteaga and Fabián J. Bonetto
Phys. Rev. Lett. 100, 074302 – Published 21 February 2008

Abstract

Previous works on single bubble sonoluminescence in sulfuric acid solutions have stressed the fact that the sonoluminescence (SL) emissions are the highest ever found, but at the same time the bubble moves in orbits. We have fixed the SL bubble spatially and at the same time we have reached higher SL emissions using another harmonic acoustic signal to produce the acoustic excitation. Multiple harmonic excitation produces up to a fourfold increase in SL emissions, reaching the peak value of about 40μW for a moving bubble and 15μW for a nonmoving bubble. The ability to have a bright stationary bubble also opens new research opportunities. In particular, we develop a new method to measure the absolute radius evolution of the bubble that exploits this stability.

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  • Received 28 November 2007

DOI:https://doi.org/10.1103/PhysRevLett.100.074302

©2008 American Physical Society

Authors & Affiliations

Raúl Urteaga and Fabián J. Bonetto

  • Instituto Balseiro, Centro Atómico Bariloche, Rio Negro, Argentina

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Issue

Vol. 100, Iss. 7 — 22 February 2008

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