Pulsed photothermal radiometric investigations of optical and thermal properties

verfasst von: Christoph H. Schmitz, Thomas G. Hantzko, Stefan Lohmann, Holger Lubatschowski, Wolfgang Ertmer
Abstract: The knowledge of laser tissue interaction, the light propagation in tissue and thus its optical properties are of fundamental importance for both laser treatment and diagnostics. We use the method of pulsed photothermal radiometry (PPTR) to evaluate optical or thermal properties of tissue-like phantoms. Because its a non-destructive and non-contact technique its a promising tool for tissue optics in vivo. As phantoms we used gelatine of known optical properties with ink added as absorber. Once the thermal features are known, one can determine the optical properties of the sample and vice versa. PPTR investigations of absorption coefficients were compared to other methods such as time resolved stress detection and optical transmission measurements. PPTR is a suitable tool to perform spectroscopy under conditions of high pressure and/or temperature and can therefore be used to investigate the ablation process.
Organisationseinheit(en): Institut für Quantenoptik
Typ: Aufsatz in Konferenzband
Seiten: 12-19
Anzahl der Seiten: 8
Publikationsdatum: 1996
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Elektronische, optische und magnetische Materialien, Physik der kondensierten Materie, Angewandte Informatik, Angewandte Mathematik, Elektrotechnik und Elektronik

BibTeX

@inproceedings{0f42bf03563947fb98302a7b0531bb6b,
title = "Pulsed photothermal radiometric investigations of optical and thermal properties",
abstract = "The knowledge of laser tissue interaction, the light propagation in tissue and thus its optical properties are of fundamental importance for both laser treatment and diagnostics. We use the method of pulsed photothermal radiometry (PPTR) to evaluate optical or thermal properties of tissue-like phantoms. Because its a non-destructive and non-contact technique its a promising tool for tissue optics in vivo. As phantoms we used gelatine of known optical properties with ink added as absorber. Once the thermal features are known, one can determine the optical properties of the sample and vice versa. PPTR investigations of absorption coefficients were compared to other methods such as time resolved stress detection and optical transmission measurements. PPTR is a suitable tool to perform spectroscopy under conditions of high pressure and/or temperature and can therefore be used to investigate the ablation process.",
author = "Schmitz, {Christoph H.} and Hantzko, {Thomas G.} and Stefan Lohmann and Holger Lubatschowski and Wolfgang Ertmer",
year = "1996",
language = "English",
isbn = "0819423254",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
pages = "12--19",
editor = "Albrecht, {Hans J.} and Delacretaz, {Guy P.} and Meier, {Thomas H.} and Steiner, {Rudolf W.} and Svaasand, {Lars O.}",
booktitle = "Proceedings of SPIE",
note = "1996 Laser-Tissue Interaction and Tissue Optics II ; Conference date: 07-09-1996 Through 10-09-1996",
}