Photothermal Radiometry
- 1 November 1979
- journal article
- Published by IOP Publishing in Physica Scripta
- Vol. 20 (5-6) , 659-662
- https://doi.org/10.1088/0031-8949/20/5-6/020
Abstract
We introduce a new analytical technique, by which contact-free spectroscopic studies of condensed matter can be performed. Photothermal radiometry (PTR) is based on pulse-wise illumination of a specimen by monochromatic radiation, and subsequent detection of attendant changes in the emission of thermal radiation from the sample. Infrared PTR absorption spectra recorded from powdered K2SO4 at temperatures 295-942 K are presented, to emphasize that PTR allows opaque and/or strongly scattering specimens to be studied directly.Keywords
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