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Electron trap liberation in MgF₂doped with Yb²⁺ using a two-color excitation experiment (2012)

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Journal Article
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http://hdl.handle.net/10092/9095

Publisher's DOI/URI
https://doi.org/10.1063/1.3678630

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University of Canterbury. Physics and Astronomy
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Authors
Senanayake, P.S.
Wells, J-P.R.
Reid, M.F.
Berden, G.
Meijerink, A.
Reeves, R.J.
Abstract

We utilize the optical transitions of Yb²⁺ excited by an ultraviolet optical parametric amplifier to probe electron trap liberation in MgF₂via 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.

Citation
Senanayake, P.S., Wells, J-P.R., Reid, M.F., Berden, G., Meijerink, A., Reeves, R.J. (2012) Electron trap liberation in MgF₂doped with Yb²⁺ using a two-color excitation experiment. Applied Physics Letters, 100(4), pp. 041902, 3pp.
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ANZSRC Fields of Research
51 - Physical sciences::5102 - Atomic, molecular and optical physics::510201 - Atomic and molecular physics
51 - Physical sciences::5102 - Atomic, molecular and optical physics::510203 - Nonlinear optics and spectroscopy
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