Infrared Photoacoustic Spectra of Surface Species in the 4000-2000 cm−1Region Using a Broad Band Source

Abstract

Rosencwaig pointed out that the recently revived technique of photoacoustic spectroscopy (PAS)¹ should be useful for studying surfaces and adsorbed species, and demonstrated the feasibility of the approach by recording some spectra in the visible region of the spectrum.² It would, however, be more useful to be able to obtain spectra of adsorbed species in the IR range because the information obtainable is much more detailed and specific (the greater utility of IR than UV-visible spectra is amply demonstrated by the extensive