Patent ID: 8389890

Claim:
A method of removal of a first biological tissue from the surface of a second biological tissue using laser induced breakdown of the first biological tissue which comprises: a. generating a beam of one or more laser pulses in which each pulse has a pulse width equal to or less than a pulse width value corresponding to a change in slope of, a curve of fluence breakdown threshold (Fth) as a function of laser pulse width (T), said change occurring at a point between first and second portions of said curve, said first portion spanning a range of relatively long pulse width where Fth varies with the square root of pulse width (Tl/2) and said second portion spanning a range of short pulse width relative to said first portion with a Fth versus T slope which differs from that of said first portion; and b. focusing said one or more pulses of said beam to a point above the surface of the first biological tissue.