Title :
Mechanism for the thermal dependence of the Cr to Nd energy transfer in garnets
Author :
Armagan, Guzin ; Bartolo, Baldassare Di
fDate :
6/1/1988 12:00:00 AM
Abstract :
The temperature dependence of the Cr-Nd energy transfer is found to be due to the thermal variation of the radiative decay probability of Cr. The validity of this conjecture is checked in the Gd/sub 3/Sc/sub 2/Ga/sub 3/O/sub 12/ and CaMg/sub 2/Y/sub 2/Ge/sub 3/O/sub 12/ crystals. It is also found that above 200 K, the nonradiative energy transfer rate from Cr to Nd is greater in Gd/sub 3/Sc/sub 2/Ga/sub 3/O/sub 12/ than in CaMg/sub 2/Y/sub 2/Ge/sub 3/O/sub 12/.<>
Keywords :
calcium compounds; chromium; gadolinium compounds; garnets; magnesium compounds; neodymium; nonradiative transitions; radiative lifetimes; scandium compounds; solid lasers; yttrium compounds; 200 K; CaMg/sub 2/Y/sub 2/Ge/sub 3/O/sub 12/:Cr,Nd; Cr-Nd energy transfer; Gd/sub 3/Sc/sub 2/Ga/sub 3/O/sub 12/:Cr,Nd; garnets; nonradiative energy transfer rate; radiative decay probability; temperature dependence; thermal dependence; thermal variation; Chromium; Energy exchange; Garnets; Laser theory; Luminescence; Neodymium; Pulse amplifiers; Temperature dependence; Temperature distribution; Temperature measurement;
Journal_Title :
Quantum Electronics, IEEE Journal of
