1. Department of Physics, Howell Science Complex, East Carolina University, Greenville, North Carolina 27858, United States
2. Brody School of Medicine, East Carolina University, Greenville, North Carolina 27858, United States
3. Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045, United States
4. Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, United States
5. Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States