Perspective: photoacoustic spectroscopy:“Linearization and signal recovery in photoacoustic infrared spectroscopy”[Rev. Sci. Instrum. 78, 051301 (2007)]
JF McClelland - Review of scientific instruments, 2007 - pubs.aip.org
Photoacoustic spectroscopy (PAS) 1–3 is a unique version of absorption spectroscopy that
differs from transmission and reflection methods of measuring absorbance spectra in that
light absorption is measured directly by the heat it produces. Transmission spectroscopy
uses Beer's Law to indirectly determine a sample's absorbance spectrum. Reflection
spectroscopies operate in a similar indirect fashion. In practical terms, PAS is suitable for
direct analysis of most samples without the need to either prepare or alter the sample which …
differs from transmission and reflection methods of measuring absorbance spectra in that
light absorption is measured directly by the heat it produces. Transmission spectroscopy
uses Beer's Law to indirectly determine a sample's absorbance spectrum. Reflection
spectroscopies operate in a similar indirect fashion. In practical terms, PAS is suitable for
direct analysis of most samples without the need to either prepare or alter the sample which …