Time resolved luminescence

To investigate charge carrier dynamics, e.g. lifetimes

Time resolved luminescence

Principle of pulsed excitation and emission of a dual fluorescence and phosphorescence measurement (from Collier & McShane, 2013)

Time resolved luminescence measurements allow the determination of the life-times of electron states and thus description of the kinetics involved. This allows the correlation to different centres and discrimination of processes. Employing excitation pulses of appropriate time length with adequate off-times for luminescence detection allows the separation of different luminescence signals, which might be related to different minerals (e.g. feldspar and quartz) and can be used for determining two different doses for a single sample (e.g. pulsed OSL for dating purposes).

 

  • Frequency-domain life time measurements at nanosecond resolution

  • Time-domain life time measurements at microsecond resolution

  • Time-resolved ratiometric measurements

  • Investigate quenching

 

Chithambo ML (2007) The analysis of time-resolved optically stimulated luminescence: I. Theoretical considerations. Journal of Physics D: Applied Physics 40, 1874-1879.

Chithambo ML (2007) The analysis of time-resolved optically stimulated luminescence: II. Computer simulations and experimental results. Journal of Physics D: Applied Physics 40, 1880-1889.

Collier BB & McShane MJ (2013) Time-resolved measurements of luminescence. Journal of Luminescence 144, 180-190.

Pagonis V, Chithambo ML, Chen R, Chruścińska A, Fasoli M, Li SH, Martini M & Ramseyer K (2014) Thermal dependence of luminescence lifetimes and radioluminescence in quartz. Journal of Luminescence 145, 38-48.