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arXiv · 1110.6659

The observation of electron trap liberation in MgF$_{2}$ doped with Yb$^{2+}$ using a two-color excitation experiment

P. S. Senanayake·J. P. R. Wells·M. F. Reid·G. Berden·A. Meijerink·R. J. Reeves
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Abstract

We utilize the optical transitions of Yb$^{2+}$ excited by an ultraviolet optical parametric amplifier to probe electron trap liberation in MgF$_{2}$ via the observation of a photoluminescence enhancement effect induced by a subsequent infrared pulse from a free-electron laser. The temperature dependence of the enhancement suggests that we liberate very shallow traps having a depth of approximately 17 cm$^{-1}$. The observed `trap spectrum' is consistent with a simple model of a Coulomb trap.

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P. S. Senanayake, J. P. R. Wells, M. F. Reid, G. Berden, A. Meijerink, R. J. Reeves. 2011-10-30. The observation of electron trap liberation in MgF$_{2}$ doped with Yb$^{2+}$ using a two-color excitation experiment. https://doi.org/10.1063/1.3678630

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