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K: Kurzzeitphysik
K 3: Laser beam - matter interaction
K 3.1: Vortrag
Donnerstag, 20. März 2003, 11:30–11:45, F04
UV Laser-induced color centers in photosensitive glass — •Marc Talkenberg1, Christian Spitz2, Ernst Wolfgang Kreutz1, and Ralf Menzel 2 — 1Lehrstuhl für Lasertechnik, Rheinisch-Westfälische Technische Hochschule, Steinbachstrasse 15, 52074 Aachen, Germany — 2Universität Potsdam, Institut für Experimentalphysik, Photonik, Am Neuen Palais 10, 14469 Potsdam, Germany
Color centers and microstructures are generated in photosensitive glass using nanosecond-pulsed UV laser radiation. Subsequent thermal treatment and wet chemical etching results in crystallisation of the laser-illuminated absorbing region and in the fabrication of microstructures. During laser-illumination color centers in the UV are generated and probed using optical spectroscopy, electron spin resonance and X-ray fluorescence. XeCl laser-induced excited-state absorption in Cer-doped photosensitive glass is presented using time-resolved pump and probe method in the UV and IR. On the basis of these investigations the color center-generation in multicomponent glass is discussed.