Environment-induced heating in sonoluminescence experiments

TL;DR

This paper proposes a quantum optical heating mechanism that may significantly contribute to the high temperatures observed in sonoluminescence, especially during bubble collapse, and suggests control methods using laser fields.

Contribution

It introduces a novel quantum optical heating model for sonoluminescence, highlighting the role of inhomogeneous electric fields and potential laser control techniques.

Findings

Electric fields can increase particle temperatures by several orders of magnitude.

Heating occurs on a nanosecond time scale during bubble collapse.

Laser fields can potentially control sonoluminescence phenomena.

Abstract

This paper discusses a quantum optical heating mechanism which might play an important role in sonoluminescence experiments. We suggest that this mechanism occurs during the final stages of the bubble collapse phase and accompanies the thermodynamic heating due to the compression of the bubble. More concretely, it is shown that a weak but highly inhomogeneous electric field, as it occurs naturally during rapid bubble deformations, can increase the temperature of strongly confined particles by several orders of magnitude on a nanosecond time scale [A. Kurcz et al., New J. Phys. 11, 053001 (2009)]. Our model suggests that it is possible to control sonoluminescence experiments in ionic liquids with the help of appropriately detuned laser fields.