Defect enhancement of Er emission in single crystal Er2O3
Abstract
We report observations of crystal defect induced modifications in the laser-excited Er3+ photoluminescence spectra of single-crystal Er2O3 thin films. These include marked enhancement of transition intensities known to be weak or nonexistent in as-grown samples. In this Letter, we examine the temperature and defect density dependence of the measurements and suggest photophysical processes that may account for these unexpected results.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (15)
H. Wu
A. Dodson
Department of Physics and Astronomy, Vanderbilt University 1 , Nashville, Tennessee 37235,
A. al-Wahish
Department of Physics and Astronomy, Vanderbilt University 1 , Nashville, Tennessee 37235,
A. O'Hara
Department of Physics, Western Michigan University 2 , Kalamazoo, Michigan 49008,
A. Rai
A. B. Posadas
Department of Physics and Astronomy, The University of Texas 3 , Austin, Texas 78712,
Y. Q. Wang
B. Lawrie
Materials Science and Technology Division, Oak Ridge National Laboratory 5 , Oak Ridge, Tennessee 37830,
M. Titze
Sandia National Laboratories 7 , Albuquerque, New Mexico 87123,
J. Davidson
A. Hmelo
Department of Physics and Astronomy, Vanderbilt University 1 , Nashville, Tennessee 37235,
A. A. Demkov
Department of Physics, University of Texas at Austin 3 , Austin, Texas 78712,
K. Varga
Department of Physics and Astronomy, Vanderbilt University 1 , Nashville, Tennessee 37235,
L. C. Feldman
Department of Physics and Astronomy, Rutgers University 8 , Piscataway, New Jersey 08901,
N. H. Tolk
Department of Physics and Astronomy, Vanderbilt University 1 , Nashville, Tennessee 37235,