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Proceedings Paper

Laser light-tissue interaction: heterogeneity effects
Author(s): Vladilen S. Letokhov
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Paper Abstract

This report discusses the effects of pulsed, spatially inhomogeneous deposition of laser light energy that causes local heating of microregions in the exposed biotissue. The local heating effects may be due to: (1) the quantum character of absorption; (2) spatially inhomogeneous absorptivity of the tissue; and (3) spatially inhomogeneous light intensity distribution. The discussion involves various biological organization levels: molecular chromophores, cells, and biotissues (exemplified by laser ablation). The inference drawn are that: (1) it is necessary to take account of the local heating effects in the interaction between laser light and biotissue and (2) it is potentially possible to use these effects in laser therapy (laser photothermotherapy).

Paper Details

Date Published: 17 June 1993
PDF: 1 pages
Proc. SPIE 1921, Laser Spectroscopy of Biomolecules, (17 June 1993); doi: 10.1117/12.146126
Show Author Affiliations
Vladilen S. Letokhov, Institute of Spectroscopy (Russia)

Published in SPIE Proceedings Vol. 1921:
Laser Spectroscopy of Biomolecules

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