Laser-Oriented Search of the Optimum Light for Phototherapy

The availability of coherent optical sources (lasers) has permitted a rapid development of photosurgical and photocoagulative techniques during the last decadel. Photomedicine2 appeared another very interesting field for laser applications in view of the potential progresses in the already existing phototherapeutical procedures, and for the importance of laser techniques in the photobiological field3. The laser photochemotherapy of tumors4 represents a noticeable example of this prevision.