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This chapter describes time-resolved, pulsed-laser photoacoustics and the way its data can be deconvolved to give kinetic and volumetric information. The process uses two analysis methods common to time-resolved fluorescence decay—namely, nonlinear least-squares iterative reconvolution and the method of moments. The analysis techniques are illustrated in the chapter with experimental and synthetic data. The processes involved in the pulsed-laser photoacoustic experiment involve absorbing of a photon from a laser pulse by a molecule in solution. The purpose of photoacoustic waveform deconvolution is to obtain information on the rate and magnitude of volume changes (for example, owing to heat release) following the absorption of a photon. The chapter describes the features of photoacoustic waveform analysis. The preprocessing of photoacoustic data is necessary before waveform …