Dr. J. Orava, Prof. A. L. Greer Department of Materials Science & Metallurgy, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom E-mail: [email protected] Dr. J. Orava, Prof. A. L. Greer WPI Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan Prof. D. W. Hewak Optoelectronics Research Centre, University of Southampton, Southampton ...