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Why is light produced when an underwater bubble is collapsed with a sound wave?
I have come across this fact on a page (similar to this) but can't understand "Why". I'm just curious about this interesting fact. And, I want to know what's the currently accepted model for this phenomenon and how good it holds. Any kind of help regarding this topic will be highly appreciated.
There is a detailed review of this phenomenon here
The phenomenon is known as sonoluminescence. One of the leading theories is that it is caused by "adiabatic heating of the bubble at collapse, leading to partial ionization of the gas inside the bubble and to thermal emission such as bremsstrahlung."
