Abstract
The paper is dedicated to studying the optical properties of YAG:Er single crystalline films (SCF) grown by liquid phase epitaxy. The absorption, cathodoluminescence and photoluminescence spectra were measured for the YAG:Er SCFs with different doping levels of Er3+ from 0.735 to 6.6at%. The luminescence spectra and luminescence excitation spectra under synchrotron radiation excitation in the fundamental absorption range of the YAG and in the intrinsic f–d absorption bands of Er3+ ions reveal the peculiarities of energy transfer from the YAG host to the Er3+ ions.
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