Pulsed Photothermal Radiometry Studies in Tissue Optics
The phenomenon of thermal radiative emission is the basis of a materials evaluation technique known as photothermal radiometry. This technique involves irradiation of the sample with monochromatic light which is absorbed, causing a temperature rise. The increase in the blackbody radiative emission due to this rise is recorded with an infrared detector that views the sample surface. The detected signal contains information about the optical and thermal properties of the sample. Previous studies have used either modulated or pulsed light excitation methods; in this chapter, we will examine the applicability of the latter approach, known as pulsed photothermal radiometry (PPTR), to the study of optical properties of tissue.
KeywordsCholesterol Attenuation Photosynthesis Polystyrene Eter
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