Term: optoacoustic spectroscopy https://doi.org/10.1351/goldbook.O04316 Definition: Same as photoacoustic spectroscopy. Note: Frequently used to denominate the @L03459@-induced production of acoustic waves combined with a piezoelectric detector and distinguish it from the amplitude-modulated excitation combined with a gas-coupled microphone as detector. Related Terms: 1) laser (http://doi.org/10.1351/goldbook.L03459). 2) photoacoustic spectroscopy (http://doi.org/10.1351/goldbook.P04576). Source: PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 379 (https://doi.org/10.1351/pac200779030293) Citation: 'optoacoustic 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.O04316 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.