Mysteries and Unknows of Single Bubble Sonoluminescence from Viewpoint of Plasma Spectroscopy

Details Mysteries and Unknows of Single Bubble Sonoluminescence from Viewpoint of Plasma Spectroscopy Mysteries and Unknows of Single Bubble Sonoluminescence from Viewpoint of Plasma Spectroscopy

2001-01-23

arxiv.org/abs/physics/0101081v1

Physics

Plasma Physics

HTML, approx. 5 pages, 5 figures, accepted for publication in proceedings of APP Spring Meeting 2001, Bad Honnef, 18-21 Feb

Scientific paper

UV continua observed in multi-bubble and single-bubble sonoluminescence spectra of hydrogen-containing liquids have the same physical nature - radiative dissociation of electronically excited hydrogen molecules (and possibly hydrides of heavy rare gases like ArH). In the case of SBSL of "air bubble in water" the oscillating bubble actually consists of a hydrogen/argon mixture with periodically changing amount of water vapor. The proposed mechanism is able to explain all available spectroscopic observations without any exotic hypothesis but in terms usual for plasma spectroscopy.

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