1. Department of Electrical and Computer Engineering; Clemson University; Clemson South Carolina 29634
2. Department of Electrical and Computer Engineering; University of Illinois at Urbana-Champaign; Urbana Illinois 61801
3. Department of Materials Science & Engineering; Iowa State University of Science and Technology; Ames Iowa 50011-2300
4. Center for Optical Materials Science and Engineering Technologies (COMSET) and the Department of Materials Science and Engineering; Clemson University; Clemson South Carolina 29634