Laser-Tissue Interactions

Interactions of light with biological tissue vary with wavelength, pulse duration and intensity. Mechanisms of such interactions include photo-chemical, thermal, mechanical and ionization phenomena. We study interaction mechanisms of pulsed lasers with biological cells and tissues including:

  • Cellular and tissue hyperthermia (milliseconds to seconds)
  • Dynamics of photocoagulation (micro- to milliseconds).
  • Explosive vaporization and cavitation (nano- to microseconds)
  • Multi-photon ionization of transparent materials (femto- to picoseconds)

We develop applications of these interactions to: