Time-resolved spectra of excited-state absorption in Er3+ doped YAlO3

Markus Pollnau, E. Heumann, G. Huber

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    A pump- and probe-beam technique is used for measuring time-resolved excited-state absorption (ESA) and stimulated-emission (SE) spectra of Er3+ doped YAlO3. The Er3+ 4I15/2 -> 4F7/2 transition of the sample is excited at 488 nm by an excimer laser pumped dye laser. The ESA and SE of broadband xenon flashlamp light is monitored between 300 and 860 nm by an optical multichannel analyzer (OMA). The analysis of the experimental results provides information on the effective cross sections ESA and SE originating from several levels and on the populations of these levels. To our knowledge this represents the first detailed investigation of time-resolved ESA and SE over a broad spectral range in rare-earth doped materials.
    Original languageUndefined
    Article number10.1007/BF00324164
    Pages (from-to)404-410
    Number of pages7
    JournalApplied physics A: Materials science and processing
    Issue number5
    Publication statusPublished - 1992


    • IOMS-APD: Active Photonic Devices
    • IR-70121
    • EWI-17588

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