1. Rose-Hulman Institute of Technology, Department of Physics and Optical Engineering, 5500 Wabash Avenue, Terre Haute, Indiana 47803, United States
2. Rose-Hulman Institute of Technology, Department of Mechanical Engineering, 5500 Wabash Avenue, Terre Haute, Indiana 47803, United States
3. Pennsylvania State University, Department of Engineering Science and Mechanics, 201 Old Main, University Park, Pennsylvania 16802, United States