Laser radiation tissue interaction

Journal Article · Mon May 01 04:00:00 EDT 1989 · Health Phys.; (United States)

DOI:https://doi.org/10.1097/00004032-198905000-00002· OSTI ID:5900205

Hillenkamp, F

Mechanisms of interaction between laser radiation and biological tissue are reviewed. Scattering and absorption determine the penetration of radiation into tissue; the heterogeneity of tissues prevents exact model calculations of in-depth energy deposition. The high irradiances, achievable with pulsed lasers, can induce nonlinear absorption, optical breakdown and plasma formation in tissues. Heat conduction and heat convection as well as the build-up and propagation of pressure transients damage tissue outside of the absorbing volume. The limitations to the validity of the first-order rate processes as a description for thermal tissue coagulation and the possibilities for novel photochemistry are discussed. 21 references.

• Research Organization: Universitaet Muenster (Germany, F.R.)
• OSTI ID: 5900205
• Journal Information: Health Phys.; (United States), Journal Name: Health Phys.; (United States) Vol. 56:5; ISSN HLTPA
• Country of Publication: United States
• Language: English

Related Subjects

560400* -- Other Environmental Pollutant Effects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMAL TISSUES
ANIMALS
BIOLOGICAL EFFECTS
BODY
DOCUMENT TYPES
ELECTROMAGNETIC RADIATION
ENERGY
HEAT
LASER RADIATION
LASERS
MAMMALS
MAN
PRIMATES
RADIATIONS
REVIEWS
SENSITIVITY
TISSUES
VERTEBRATES