An Ultrasonic analog for a laser
Classical Physics
2017-08-23 v2
Abstract
We report measurements on ultrasonic systems analogous to random lasers. One system entails unstable ultrasonic feedback between distinct transducers, another involves a piezoelectric device that emits spontaneously and by stimulation. Both systems are found to exhibit behaviors similar to those of lasers. Over a wide range of parameters we observe narrow single emission lines, sensitivity to linear cavity properties, complex multi-mode emissions, and line narrowing.
Cite
@article{arxiv.physics/0509215,
title = {An Ultrasonic analog for a laser},
author = {Richard L Weaver and Oleg I Lobkis and Alexey Yamilov},
journal= {arXiv preprint arXiv:physics/0509215},
year = {2017}
}