Abstract
Ultrafast (or ultrashort) pulsed laser ablation of biological tissue has drawn much attention due to the minimal collateral damage caused by laser irradiation. Many clinical applications of ultrafast laser ablation have been proposed, including ophthalmology, dentistry, and neurosurgery (Kim et al., 1998). During ultrafast laser interaction with biological tissues, which are dielectric materials, multiphonon absorption occurs which enhances the absorption of the laser beam in tissue. The tissue can then be heated rapidly to a high temperature, causing evaporation and tissue removal.