Photoacoustic Signal Detection and a Method for Simulating Light Absorption in a Resonant Optoacoustic Chamber
Abstract
The objective of research presented here was to determine if a
signal, attributable to the optoacoustic effect, could be detected
and measured. This was to be accomplished through the use of the
equipment available in a typical small college physics department.
The available equipment included a lock-in amplifier for signal analysis
and a low-powered He-Ne laser. This paper represents only the
beginnings of the possibilities for investigation on a more quantitative
level; however, the accomplished research provides a good basis
for learning more about the basic principles of the optoacoustic effect
and understanding some of the underlying physics.