Two-component radiation model of the sonoluminescing bubble

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Two-component radiation model of the sonoluminescing bubble

Based on the experimental data from Weninger, Putterman, and Barber, Phys. Rev. E 54, R2205 ~1996!, we offer an alternative interpretation of their experimental results. A model of sonoluminescing bubble which demonstrates that the electromagnetic radiation originates from two sources: the isotropic black body or bremsstrahlung emitting core and dipole radiation-emitting shell of accelerated el...

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In the parameter region for sonoluminescence of a single levitated bubble in a water-filled resonator it is observed that the bubble may have an enormous spatial stability leaving it "pinned" in the fluid and allowing it to emit light pulses of picosecond accuracy. We report here observations of a complex harmonic structure in the acoustic field surrounding a sonoluminescing bubble. We show tha...

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Measurement of pressure and density inside a single sonoluminescing bubble.

The average pressure inside a sonoluminescing bubble in sulfuric acid has been determined by two independent techniques: (1) plasma diagnostics applied to Ar atom emission lines, and (2) light scattering measurements of bubble radius vs time. For dimly luminescing bubbles, both methods yield intracavity pressures approximately 1500 bar. Upon stronger acoustic driving of the bubble, the sonolumi...

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Dynamics of a sonoluminescing bubble in sulfuric acid.

The spectral shape and observed sonoluminescence emission from Xe bubbles in concentrated sulfuric acid is consistent only with blackbody emission from a spherical surface that fills the bubble. The interior of the observed 7000 K blackbody must be at least 4 times hotter than the emitting surface in order that the equilibrium light-matter interaction length be smaller than the radius. Bright e...

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Unstable diffusion and chemical dissociation of a single sonoluminescing bubble.

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ژورنال

عنوان ژورنال: Physical Review E

سال: 1997

ISSN: 1063-651X,1095-3787

DOI: 10.1103/physreve.56.r6245