1. Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, USA
2. Spectral Energies, LLC, Dayton, Ohio 45431, USA
3. Air Force Research Laboratory, Propulsion Directorate, Wright-Patterson Air Force Base, Ohio 45433, USA
4. Erlangen Graduate School in Advanced Optical Technologies (SAOT), Friedrich-Alexander-University Erlangen-Nürnburg, Erlangen, Germany