Modelling of decay kinetics of self-trapped exciton luminescence in CdWO4 under femtosecond laser excitation in absorption saturation conditions

• Authors: Sergey Markov , Vitali Nagirnyi , Andrey Vasil’ev , Vladimir Makhov , Raul Laasner , Sebastian Vielhauer , Marco Kirm , Rimantas Grigonis , Valdas Sirutkaitis
• Languages of publication: EN

Abstracts

EN

The analytical expressions for the three-dimensional spatial distribution of excitons and luminescence decay kinetics of wide band-gap crystals were derived taking into account the saturation effect for absorption near the centre of the incident laser beam with Gaussian transversal profile. The model is verified for the excitonic emission of CdWO4 crystals under excitation by ultra-short laser pulses in the region of weak excitonic absorption.

Keywords

EN

exciton-exciton interaction; dipole-dipole interaction; excitation density effects; absorption saturation

• Journal: Open Physics
• Year: 2012
• Volume: 10
• Issue: 4
• Pages: 1002-1008

Dates

published

1 - 8 - 2012

online

17 - 7 - 2012

Contributors

author

Sergey Markov,

author

Vitali Nagirnyi

• Institute of Physics, University of Tartu, Tartu, Estonia

author

Andrey Vasil’ev

• Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia

author

Vladimir Makhov

• P.N. Lebedev Physical Institute, Moscow, Russia

author

Raul Laasner

• Institute of Physics, University of Tartu, Tartu, Estonia

author

Sebastian Vielhauer

• Institute of Physics, University of Tartu, Tartu, Estonia

author

Marco Kirm

• Institute of Physics, University of Tartu, Tartu, Estonia

author

Rimantas Grigonis

• Laser Research Centre of Vilnius University, Vilnius, Lithuania

author

Valdas Sirutkaitis

• Laser Research Centre of Vilnius University, Vilnius, Lithuania

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Identifiers

DOI

10.2478/s11534-012-0028-9