Related Experiment Videos
Time correlated single photon mie scattering from a sonoluminescing bubble
1Department of Physics, University of California, Los Angeles, California 90095, USA.
Summary
Time-correlated single photon counting with pulsed Mie scattering precisely tracks sonoluminescing bubble motion. This advanced technique reveals shock wave dynamics at speeds up to 6 km/s.
Area of Science:
- Physics
- Acoustics
- Optics
Background:
- Sonoluminescing bubbles exhibit complex, nonlinear dynamics.
- Understanding bubble collapse requires high-resolution temporal measurements.
Purpose of the Study:
- To apply time-correlated single photon counting (TCSPC) to pulsed Mie scattering for analyzing sonoluminescing bubble motion.
- To investigate physical processes limiting data interpretation, such as shock wave emission.
Main Methods:
- Utilized time-correlated single photon counting (TCSPC) with pulsed Mie scattering.
- Employed streak camera and microscopy to observe shock wave emission.
Main Results:
- Achieved temporal resolution better than 50 picoseconds for light scattering changes.
- Observed shock wave speeds of approximately 6 km/s emanating from the bubble.
Conclusions:
- TCSPC-TCSPC provides unprecedented temporal resolution for studying sonoluminescence.
- The observed shock speeds offer insights into the extreme conditions within collapsing bubbles.