1. Department of Engineering Physics, Air Force Institute of Technology, Wright-Patterson Air Force Base, Ohio 45433, USA
2. Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, Ohio 45433, USA
3. Azimuth Corporation, 4134 Linden Avenue, Suite 300, Dayton, Ohio 45431, USA
4. Institute of Solid State Physics and Chemistry, Uzhgorod National University, 88 000 Uzhgorod, Ukraine
5. Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506, USA