1. Department of Engineering Physics, Air Force Institute of Technology, Wright-Patterson Air Force Base, Ohio 45433, USA
2. Gryphon Schafer, Arlington, Virginia 22203, USA
3. Institute for Solid State Physics and Chemistry, Uzhhorod National University, 88000 Uzhhorod, Ukraine
4. Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, Ohio 45433, USA
5. Azimuth Corporation, 2970 Presidential Drive, Suite 200, Fairborn, Ohio 45324, USA
6. Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506, USA