Richard Williams Reynolds Professor, Physics Dept., Wake Forest University
	212 Olin Physical Laboratory P.O. Box 7507 Winston-Salem, NC 27109-7507	Telephone: 336-758-5132 Fax: 336-758-6142 E-mail: williams@wfu.edu

Selected Publications

• Self-Trapped Excitons Second Edition, K . S. Song and R. T. Williams (monograph, 409 pp) (Springer-Verlag, Berlin-Heidelberg, 1996).
• Femtosecond Time-Resolved Photoelectron Spectroscopy of Annealed and Sputtered GaP(110), M. Leblans, R. K. R. Thoma, J. L. LoPresti, M. Reichling, and R. T. Williams, J. Luminescence 72-74, 108 (1997).
• Subpicosecond Spectroscopy of Hole and Exciton Self-Trapping in Alkali Halide Crystals, E. D. Thoma, H. M. Yochum, and R. T. Williams, Phys. Rev. B 56, 8001 (1997).
• Electronic Band Structures of the Scheelite Materials – CaMoO₄, CaWO₄, PbMoO₄, and PbWO₄, Y. Zhang, N. A. W. Holzwarth, and R. T. Williams, Phys. Rev. B 57, 12738 (1998).
• Study of GaN Films by Pulsed Laser Photoelectron Spectroscopy, J. L. LoPresti, S. C. Webb, R. T. Williams, W. Kim, H. Morkoc, A. E. Wickenden, and D. D. Koleske, Nucl. Instrum. & Meth. B 141, 733 (1998).
• Multiphoton Excitation Microscopy of Photoluminescence in GaN Epitaxial Films, Y. C. Zhang, K. Burak Ucer, and R. T. Williams, Proceedings of the 3rd International Conference on Excitonic Processes in Condensed Matter, edited by R. T. Williams and W. M. Yen, PV 98-25 (The Electrochemical Society, Pennington, NJ), p. 537, (1999).
• Electronic Structure and Optical Properties of Cd MoO4 and CdWO4, Y. Abraham, N. A. W. Holzwarth, and R. T. Williams, Phys. Rev. B62, 1733 (2000).
• Self-Trapped Electron and Transient Defect Absorption in Niobate and Tungstate Crystals, R. T. Williams, K. B. Ucer, Gang Xiong, H. M. Yochum, L. G. Grigorjeva, D. K. Millers, and G. Corradi, Proc. 14th Int. Conf. on Defects in Insulating Materials (Johannesburg, April, 2000).
• 4 pi Confocal Microscope for Multiphoton Optical Sectioning of GaN Film Luminescence, K. B. Ucer, Difei Liang, R. T. Williams, and H. Morkoc, Proc. 4th Int. Conference on Excitonic Processes in Condensed Matter (Osaka, August 2000).
• In the First Instants. . . Ultrafast views of radiation effects, R. T. Williams, K. B. Ucer, and J. L. LoPresti, Proc. Int. Conf. on Luminescence Detectors and Transformers of Radiation (Jurmala, Latvia, August 2000, Elsevier).