OPTICAL ABSORPTION SPECTRUM OF COBALT DOPED YAIG.
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Date
1965
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
An optical spectrum has been observed in single crystal yttrium aluminum garnet having approximately one percent cobalt oxide doping. The spectrum, taken at temperatures ranging from $5^{\circ}K$ to $300^{\circ}K$ exhibits a total of twenty-four lines over the wavelength region 2600 {\AA} to 17,000 {\AA}. From the complete lack of any electron spin resonance absorption having the cobalt hyperfine structure signature and also from the diamagnetic state of the crystal established by susceptibility measurements made over the above temperature range, it is concluded that the optical absorption spectrum is due to $Co^{3+}$ having a $^{1}A_{1}(t^{6})$ ground term. An analysis of this spectrum based upon this identification will be presented.
Description
This work supported by the U. S. Air Force.
Author Institution: Research Institute; U. S. Naval Ordnance Laboratory White Oak, Maryland., Research Institute
Author Institution: Research Institute; U. S. Naval Ordnance Laboratory White Oak, Maryland., Research Institute