I am a senior in high school researching sonoluminesce. Me and my teacher were hypothesizing the mechanism that could cause it and discussed the possibility of the bubble and water system having LED-type qualities, as an LED is light emitted by electrons falling into holes when excited by thermal or other energetic excitations. Furthermore, the bubble releases light after the compression, possibly hinting that thermal energy has to be added for the light to be emitted like an LED, and the amount of thermal energy would be so high due to the difficulty energy-wise on creating a noble gas LED, since noble gases are inside the bubble. I wanted to ask you if this is a plausible idea and what kind of mathematics, physical laws and equations would I have to acquaint myself with in order to further my hypothesis. Also what variables should I be measuring for this idea. I thought of PV=nRT but at the largest size of the bubble, P would just about equal zero since it is just about a vacuum, and then so would n equal zero for the same reason. I just wanted to know what should I expect and learn now for when I am experimenting later. Thank you for your help and time! I wanna have a huge discussion on what everyone thinks sonoluminescence can be caused by!