1. Center for Optoelectronics and Optical Communications, University of North Carolina at Charlotte,Department of Physics and Optical Science,Charlotte,NC,USA,28223-0001
2. Air Force Research Laboratory, Sensors Directorate,OH,USA,45433
3. Air Force Research Laboratory, Materials and Manufacturing Directorate,OH,USA,45433
4. Georgia Tech Research Institute, Georgia Institute of Technology,Advanced Concepts Laboratory,Atlanta,GA,USA,30332
5. California Institute of Technology,Jet Propulsion Laboratory,Pasadena,California,USA,91030