Sonoluminescing single bubble in concentrated alkali halide solutions.
Single-bubble sonoluminescence is generated in concentrated aqueous solutions of LiBr and LiCl. The moving-bubble state, a type of unstable state in which sonoluminescence is still emitted, is observed above the stable-sonoluminescence state similarly to that in aqueous solutions of NaCl and KCl. Luminosity is increased at similar magnitudes for LiBr, LiCl, NaCl and KCl of the same concentration.
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