Radiation from a Q-Switched Ruby Laser

• DOI: 10.1038/jid.1965.14
• Publication Date: 2010-08-18T09:55:53Z
• Authors: Leon Goldman; Robert G. Wilson; Peter Hornby; Robert G. Meyer
• Keywords: Male; Radiation Effects; Tattooing; Lasers; Pathology; Humans; Cell Biology; Dermatology; Lasers, Solid-State; Biochemistry; Molecular Biology

The changes produced in the skin of man by the pulsed ruby laser have been reported previously. lf 2'3 The tissue changes are related to skin color, the type of laser used, the energy density and the duration of the laser impact. With the pulsed ruby laser, the duration of the impact is in the order of 0.001 second. A new technic called Q-switching produces laser impacts of high peak power outputs with the duration of the impact in the order of nanoseconds. There is considerable interest in the type of tissue change produced by such power outputs of such short duration.