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Excited state absorption spectroscopy of glass — Experiment and simulation

✍ Scribed by D. Piatkowski; K. Wisniewski; M. Rozanski; Cz. Koepke

Publisher
Elsevier
Year
2009
Tongue
English
Weight
271 KB
Volume
2
Category
Article
ISSN
1875-3892

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✦ Synopsis

We present the excited state absorption (ESA) spectroscopy of ZBLAN:Er 3+ glass. The experimental spectra were measured in broad spectral range (500-1800 nm) by the CW pump-probe technique. Judd-Ofelt (JO) approach was employed to interpret the results and to simulate the ESA spectra which were successfully confronted with the experiment. We also propose a systematic approach for prediction of various types of up-conversion mechanisms such as ESA up-conversion and photon avalanche (PA). Careful investigations were made to indicate possible up-conversion excitation channels in a wide spectral range, from 400 nm up to 2 μm.

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