Physical and Optical Acoustics

photo of laboratory equipment

Professors Holt

This laboratory is devoted to experiments probing science and engineering aspects of acoustic levitation, bubble dynamics and sonoluminescence, acousto-optic sensing and imaging, droplet dynamics, and the acoustics and rheology of foam.

The lab houses computer-based data acquisition systems interfaced to electronic instrumentation packages generally designed for the generation, amplification, and detection of ultrasonic and interfacial waves.

Several acoustic levitation devices have been fabricated for non-contact isolation/excitation of bubbles in water and drops in air. Also employed are systems for active acoustic scattering, laser-scattering systems for monitoring bubble and drop motion, and digital imaging systems.

Most recently, an apparatus is under development that exploits the nonlinear interaction of diffuse laser light and sound for generating high-resolution images of the optical properties of tissues.