1. Department of Mechanical Engineering, George Mason University, Fairfax, Virginia 22030, USA
2. Center for Simulation and Modeling, George Mason University, Fairfax, Virginia 22030, USA
3. Micro-Photonics Laboratory, the Holcombe Department of Electrical and Computer Engineering, Center for Optical Materials Science and Engineering Technologies (COMSET), Clemson University, Clemson, South Carolina 29634, USA
4. Naval Research Laboratory, Stennis Space Center, Mississippi 39529, USA
5. Naval Research Laboratory, Washington, DC 20375, USA