Photothermal and optoacoustic spectroscopy: state of the art and prospects

The main issues and areas of application of photo -thermal and optoacoustic spectroscopy are reviewed. Progress in innovative techniques in the most actively developing areas is presented, including microspectroscopy, multispectral techni-ques, the measurements of single particles and objects with a resolution better than the diffraction limit (nanoscopy) by both optical and probe-based methods. Possible applications of photothermal and optoacoustic spectroscopy for determining the properties of materials, studying photochemistry and fluor-escence, chemical reactions, and analytical and applied chemis-try, and solving biomedical problems is discussed. Some prospects for the development of these methods are presented.

Automated summary

This article reviews the main issues and areas of application of photo-thermal and optoacoustic spectroscopy. It presents progress in innovative techniques in the most actively developing areas, including microspectroscopy, multispectral techniques, and nanoscopy. The possible applications of these spectroscopy methods in determining material properties, studying photochemistry and fluorescence, chemical reactions, and biomedical problems are also discussed. Prospects for the development of these methods are presented.