Abstract
A visible and near-infrared (0.36–3-μm) Michelson interferometer has been built to perform Fourier transform photoacoustic spectroscopy. The scanning (step and integrate) and the internal modulation are obtained with only one active element: the moving mirror holder driven by a linear motor. The signal-to-noise improvement and the performance of the spectrometer are compared with other photoacoustic methods and illustrated by various spectra.
© 1981 Optical Society of America
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