Photoacoustic infrared spectroscopy of solids

Abstract

Several instrumental methods used to obtain photoacoustic (PA) infrared spectra of solids are discussed in this article. We describe modulation frequency effects, synchrotron infrared PA spectroscopy, amplitude and phase modulation, and the use of infrared lasers. These techniques allow the spectroscopist to acquire information that is often not obtainable using more traditional methods. © 2010 IOP Publishing Ltd.