Author:
Bauer R.,Attenberger T.,Sildos I.,Bogner U.,Maier Max
Abstract
In different color centers of neutron- irradiated and annealed sapphire crystals persistent spectral holes could be burned which were thermoresistant up to 670K [1]. In the 755.6nm zero-phonon line (ZPL) two-color photon-gated persistent spectral hole-burning (PSHB) was obtained with pulsed dye-lasers [2]. Preliminary results of PSHB with a cw laser were reported for the 462.5nm ZPL [3]. The present study concerns a investigation of PSHB with cw-lasers in different ZPL, including the 755.6nm ZPL, which is interesting for potential applications in particular because diode lasers are available in this spectral range.