Term: photoacoustic spectroscopy
https://doi.org/10.1351/goldbook.P04576

Definition:
A spectroscopic technique based on the photoacoustic effect. A photoacoustic spectrum consists of a plot of the intensity of the acoustic signal detected by a microphone or a 'piezoelectric' detector, against the excitation wavelength or another quantity related to the photon energy of the modulated excitation.

Related Terms:
1) isooptoacoustic point (http://doi.org/10.1351/goldbook.I03302).
2) photoacoustic effect (http://doi.org/10.1351/goldbook.P04575).
3) wavelength (http://doi.org/10.1351/goldbook.W06659).

Source: PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2259 (https://doi.org/10.1351/pac199668122223)

Citation: 'photoacoustic spectroscopy' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.P04576

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