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Decay Dynamics of Excited Nd ^{+3} Ions in Nd:YVO _{4} Following Weak Excitation

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3 Author(s)
Goldring, S. ; Electro-Opt. Div., Soreq NRC, Yavne, Israel ; Lavi, R. ; Lupei, V.

Decay dynamics of the upper-laser energy level of Nd:YVO4 are re-evaluated. In order to reduce the effects of re-absorption, comparative measurements among crushed samples with different doping concentrations were conducted. The magnitude of re-absorption was estimated experimentally by comparing the relative intensity of the emitted fluorescence spectra at different wavelengths, and estimated theoretically by employing a simplified model. The temporal decay dynamics are found to be non-exponential and the associated rate parameters are presented. The room temperature intrinsic life time value of the 4F3/2 energy level is found to be significantly shorter than the value accepted today.

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Quantum Electronics, IEEE Journal of  (Volume:46 ,  Issue: 2 )