Two-component radiation model of the sonoluminescing bubble

TL;DR

This paper proposes a two-component radiation model for sonoluminescing bubbles, attributing light emission to both a black body core and a dipole radiation shell driven by bubble dynamics.

Contribution

It introduces a novel interpretation of sonoluminescence involving two distinct radiation sources within the bubble, based on experimental data analysis.

Findings

Radiation from the bubble originates from a black body core and a dipole shell.

The model explains the experimental spectral data of sonoluminescence.

It offers an alternative to previous single-source radiation models.

Abstract

Based on the experimental data from Weninger, Putterman & Barber, Phys. Rev. (E), 54, R2205 (1996), we offer an alternative interpretation of their experimetal results. A model of sonoluminescing bubble which proposes that the electromagnetic radiation originates from two sources: the isotropic black body or bramsstrahlung emitting core and dipole radiation-emitting shell of accelerated electrons driven by the liquid-bubble interface is outlined.