1. Department of Electrical Engineering and Computer Science, University of Missouri, Columbia, Missouri 65211, United States
2. Department of Physics and Engineering Physics, University of Tulsa, Tulsa, Oklahoma 74104, United States
3. Department of Electrical and Computer Engineering, The University of Tulsa, Tulsa, Oklahoma 74104, United States
4. Department of Mechanical Engineering, The University of Tulsa, Tulsa, Oklahoma 74104, United States