1. Department of Materials Science and Engineering The Pennsylvania State University University Park PA 16802 USA
2. Interdisciplinary Materials Science Program Vanderbilt University Nashville TN 37212 USA
3. Photonics Initiative Advanced Science Research Center City University of New York New York NY 10031 USA
4. Institute of Physics (IA) RWTH Aachen University 52062 Aachen Germany
5. Department of Mechanical Engineering Vanderbilt University Nashville TN 37212 USA
6. DEVCOM US Army Research Laboratory Army Research Office Research Triangle Park NC 27703 USA
7. Center for Nanophase Materials Science Oak Ridge National Laboratory Oak Ridge TN 37830 USA
8. School of Physics and Astronomy The University of Iowa Iowa City IA 52242 USA