Application of Laser Physics in Cosmetic Laser Surgery
Theory of Light
Laser light is both electromagnetic wave as well as particles of discreet energy. Photon wavelets move in the direction of the propagation of light in a wave train.
Effects of Laser on Living Tissue
Photochemolysis
Photothermolysis
Attenuation of Light through Human Skin
How laser energy (electromagnetic & photon particles) penetrate human skin? .
Some rays of light reflect ,some attenuate through the skin where they scatter and being absorbed by living tissue. The attenuation process is governed by Burger ‘s Law . The laser energy diminishes exponentially.
Reflection & Attenuation
Living Tissue Reaction to Laser Light
