1. Department of Chemistry, Rice University, Houston, Texas 77005, USA
2. Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, USA
3. IERUS Technologies, 2904 Westcorp Blvd., Suite 210, Huntsville, Alabama 35805, USA
4. U.S. Army Combat Capabilities Development Command, Aviation and Missile Center, Redstone Arsenal, Alabama 35898, USA
5. Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, USA
6. Deparment of Physics and Astronomy, Rice University, Houston, Texas 77005, USA