1. Y. Fink, Department of Material Science and Engineering and Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. J. N. Winn, S. Fan, J. D. Joannopoulos, Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. C. Chen, Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. J. Michel and E. L. Thomas, Department of Material Science and Engineering, Massachusetts Institute of...