1. Laser and Optics Research Center (LORC), Department of Physics, U.S. Air Force Academy, CO 80840, USA
2. AFRL/ RXPSO, Wright-Patterson Air Force Base, Building 651, 3005 Hobson Way, OH 45433, USA
3. AFOSR/NE, Suite 326, 875 North Randolph Street, Arlington, VA 22203, USA