This phenomenon is called sonoluminescence. Sonoluminescence is the physical phenomenon of the transformation of sound into light. Scientists have been trying to explain it for 70 years, but no one has yet succeeded. No one has been able to explain how sound can create light from a bubble of air, but it does.
However, there are some advances in the explanation of sonoluminescence. At first, physicists thought it was frictional force, but in the late 1980s they discovered that a sound wave expands bubbles and heats the gas inside them to a higher temperature than on the sun's surface. Physicists thought that, bursting from the heat, the bubble creates a luminous plasma, but even 30 years later, this is still just a hypothesis.
However, the researchers believe that this phenomenon must be involved in various physical mechanisms and there must be several types of sonoluminescence. It is now known for sure that sonoluminescence depends on the size of the bubble; moreover, when it bursts, OH is emitted.
In the future, it is likely that sound and gas can be used for underwater lighting, going beyond the limitations of conventional lamps.
Sonoluminescence is the phenomenon of a flash of light during the collapse of cavitation bubbles generated in a liquid by a powerful ultrasonic wave. A typical experiment on observing sonoluminescence is as follows: a resonator is placed in a container with water and a standing spherical ultrasonic wave is created in it. With sufficient ultrasound power, a bright point source of bluish light appears in the very center of the reservoir - the sound turns into light.