ArF excimer laser beam delivery systems for medical applications

From our basic experiments of interaction of ArF laser and biotissue, the biotissue cutting quality of excimer beam was sharp and a non-thermal treatment. Namely no particular thermal damage is recognized in the case of ArF laser. The use of ArF laser in medicine is expected to produce new therapy, especially for hard biotissue. But, as is well known, usual quartz fiber is difficult to use for the UV-C region beam transmission. We have been investigating UV beam delivery techniques with the special quartz fiber and the hollow tube.