Abstract

Various methods have been developed recently to use the special features of laser radiation to detect and manipulate biological material. Three areas will be discussed in this paper: 1. Transport of high power of UV laser radiation by tapered fused silica fibres. High-purity fused silica is the most important material for the transport of high power UV-laser radiation for efficient biological tissue ablation. By time resolved absorption and fluorescence spectroscopy it can be shown, that the UV- laser induced absorption at 210 nm owing into E’center generation depends strongly on the radiation history and the content of OH radicals in the fused silica.

© 1996 Optical Society of America