Most of the papers read at this symposium, concerned applications of the ultrasonic interferometer, which may be regarded as a modern development of the familiar Kundt's tube into a precision ...

TEMPO is an interferometer able to detect high frequency ultrasonic waves. It can detect and image ultrasonic waves up to 1 GHz on any material, rough or smooth, dark or light.

I use shockless dynamic compression, gigahertz ultrasonic interferometry, and various spectroscopy techniques to demonstrate the effects of pressure and volatile content on the seismic (sound) ...

A microsecond-pulsed Nd:YAG laser to induce the ultrasound in the paper, and a Mach-Zender interferometer to detect it. The YAG pulse causes a tiny thermal expansion in the paper, which is enough to ...

I use shockless dynamic compression, resonant ultrasound spectroscopy, and gigahertz ultrasonic interferometry to demonstrate the effects of pressure and volatile content on the seismic (sound) ...

Physicists have created a quantum interferometer on an atom chip. This device can be used to explore the fundamentals of quantum theory by studying the interference pattern between two beams of atoms.