Diode-Laser-Pumped 551-nm Upconversion Laser in YLiF4;Er3+
T. Herbert, W.P. Risk, et al.
ASSL 1990
Self-reversed line shapes have been observed in the low temperature phosphorescence spectrum of 1,4-dibromonaphthalene crystals when the crystals are illuminated by a collimated laser beam. Self-reversal is a consequence of reabsorption of the phosphorescence emission. The precise shape of the self-reversed lines is a very sensitive measure of small changes in the unreabsorbed emission spectrum with respect to the absorption spectrum and energy shifts as small as 1% of the linewidth can be measured. For dibromonaphthalene we attribute these changes to macroscopic variations in strain within the crystal. Numerical calculations of the line shapes based on a simple but realistic model are compared with the experimental line shapes. Copyright © 1976 American Institute of Physics.
T. Herbert, W.P. Risk, et al.
ASSL 1990
R.M. Macfarlane, S. Ushioda
The Journal of Chemical Physics
D.M. Burland, U. Konzelmann
The Journal of Chemical Physics
R.M. Macfarlane
Journal of Luminescence