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Temporal dynamics of the frequency non-degenerate transient photoluminescence enhancement observed following excitation of inter-configurational f→d transitions in CaF2:Yb2+

descriptionPublicationkeyboard_double_arrow_right Article 01 Dec 2017 Netherlands English Publisher:Elsevier BVJournal:Journal of Luminescence, volume 192, pages 608-615 (issn: 0022-2313,

Authors: van den Toorn, Rick; Wells, Jon Paul R.; Reid, Michael F.; Hughes-Currie, Rosa B.; Berden, Giel; Reeves, Roger J.; Meijerink, A;

doi: 10.1016/j.jlumin.2017.07.053

handle: https://repository.ubn.ru.nl/handle/2066/177428 , 2066/177428

Temporal dynamics of the frequency non-degenerate transient photoluminescence enhancement observed following excitation of inter-configurational f→d transitions in CaF2:Yb2+

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Abstract

We present a detailed investigation of the dynamics of impurity-trapped excitons in CaF2:Yb2+using transient photoluminescence enhancement induced via a two-frequency, sequential excitation process employing a UV optical parametric amplifier (OPA) synchronized to an infrared free electron laser (FEL). The temporal behaviour is well approximated by a multi-level rate equation model as relaxation between excited states of the exciton as well as a small contribution from local lattice heating by the FEL which becomes evident due to the 40 cm−1splitting of the exciton excited states giving rise to the transient photoluminescence enhancement itself.

Country

Netherlands

Related Organizations

Utrecht University
Netherlands
University Museum Utrecht
Netherlands
Radboud University Nijmegen
Netherlands
University of Canterbury
New Zealand
The Dodd-Walls Centre for Photonic and Quantum Technologies
New Zealand

Keywords

Molecular Structure and Dynamics, Taverne

1 Research products, page 1 of 1

Excitons and interconfigurational transitions in CaF2:Yb2+ crystals
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