V. N. Bagratashvili, N. V. Bagratashvili, V. P. Gapontsev, G. Sh. Makhmutova, V. P. Minaev, A. I. Omel'chenko, I. È. Samartsev, A. P. Sviridov, È. N. Sobol', S. I. Tsypina, “Change in the optical properties of hyaline cartilage heated by the near-IR laser radiation”, Kvantovaya Elektronika, 2001, Volume 31, Number 6,Pages <nobr>534

This article is cited in 16 papers

Laser applications and other topics in quantum electronics

Change in the optical properties of hyaline cartilage heated by the near-IR laser radiation

V. N. Bagratashvili^a, N. V. Bagratashvili^a, V. P. Gapontsev^b, G. Sh. Makhmutova^c, V. P. Minaev^b, A. I. Omel'chenko^a, I. È. Samartsev^b, A. P. Sviridov^a, È. N. Sobol'^a, S. I. Tsypina^a

^a Institute of Laser and Information Technologies, Russian Academy of Sciences, Troitsk, Moscow Region
^b IRE-Polus Research and Technology Association, Fryazino, Moscow Region
^c Medical Centre, Management of Affairs of the President of the Russian Federation, Moscow

Abstract: The in vitro dynamics of the change in optical properties of hyaline cartilage heated by fibre lasers at wavelengths 0.97 and 1.56 μm is studied. The laser-induced bleaching (at 1.56 μm) and darkening (at 0.97 μm) of the cartilage, caused by the heating and transport of water as well as by a change in the cartilage matrix, were observed and studied. These effects should be taken into account while estimating the depth of heating of the tissue. The investigated dynamics of light scattering in the cartilage allows one to choose the optimum radiation dose for laser plastic surgery of cartilage tissues.

PACS: 42.62.Be, 87.50.Hj, 87.64.Cc, 87.64.Ni

Received: 05.03.2001