Abstract
The clocklike emission of picosecond pulses of light with a peak power over 30 mW has been observed to originate from a bubble trapped at the velocity node of a resonant sound field in water. The spectrum of this bright sonoluminescence is broadband and our measurements show that if a spectral peak exists, it lies at photon energies above 6 eV.
- Received 28 July 1992
DOI:https://doi.org/10.1103/PhysRevLett.69.1182
©1992 American Physical Society