Abstract
The persistent extinction of fluorescence emission of in glasses activated with europium and cerium is reported for the first time to the authors’ knowledge. The glass samples containing and were initially colorless and transparent and exhibited intense emission peaks at 592 and 612 nm assigned to the transitions of . The complete extinction of the -ion emission was obtained as an effect of multipulse excimer-UV-laser irradiation of the glass samples. Fluorescence microscopy, Mössbauer spectrometry, and electron spin resonance were applied for investigation of the modifications induced by the laser treatment. As a decisive proof of the extinction of fluorescence we succeeded in recording three-dimensional fluorescent photographic patterns within the activated samples.
© 1998 Optical Society of America
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