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Ting Guo
Associate Professor

Email: tguo@chem.ucdavis.edu
Phone:(530) 754-5283

B.S., Huazhong University of Science and Technology, China, 1984.
Ph.D., Rice University, 1995.
Weiser award for excellence in chemistry research, Rice University, 1995.
Postdoctoral research chemist, UC San Diego, 1995-1999.
Appointed to Faculty, UC Davis, 1999-.
The Camille and Henry Dreyfus New Faculty Awards, 1999-2004.
Group Page
Principal Research Interests
NANOMATERIALS
We want to understand the growth mechanisms of single-walled carbon nanotubes (SWNTs). Employing x-ray spectroscopy, we have interrogated the catalysts responsible for the growth of SWNTs.

DYNAMICS IN CONDENSED PHASE MATERIALS
Ultrafast x-ray absorption spectroscopy is capable of measuring both the onset of electron transfer and the accompanying structural relaxation. Electron transfer in metal complexes such as Ni porphyrins, ruthenium polypyridine complexes, Cs anions, and ZnPc (zinc phathalocynine), and those connected with DNA and peptide backbones, carbon nanotubes, and coated or composite metal clusters will be studied. In another front, cooperative, ultrafast electronic and structural dynamics in solid-state materials is being studied with both optical spectroscopic and ultrafast x-ray diffraction methods.

OPTICAL SPECTRO-MICROSCOPY
The method is based on correlation coherent Raman spectro-microscopy (CCRS). It allows us to discern bonding changes in chemical and biological systems. Research projects will center on identifying reaction pathways that are critical to understanding enzymatic reactions and interactions between drug and target molecules.
Representative Publications

Cheng, G. and T. Guo. 2001. Surface Segregation of Ni/Co Bimetallic Nanoparticles in Single-Walled Carbon Nanotube Synthesis, J. Phys. Chem. Submitted.

Cheng, G., S. Shan, A. Freyer, E. Hassanein, and T. Guo. 2001. Compact 50-Hz Terawatt Ti: Sapphire Laser for X-ray and Nonlinear Optical Spectroscopy. Appl. Opt. Submitted.

Cheng, G., S. Shan, A. Freyer, and T. Guo. 2001. Ultrafast X-ray Absorption Spectroscopy using Laser-Driven Electron X-ray Sources (LEXS). Proceedings of SPIE, 4158, 1-8.

Guo, T., Ch. Spielmann, B.C. Walker, and C.P.J. Barty. 2001. Generation of Hard X-rays by Ultrafasr Terawatt lasers Rev. Sci. Instrum., 72, 41-47.

Siders, C.W., A. Cavalleri, Cs. Toth, K. Sokolowski-Tinten, T. Guo, M. Kammler, M. Horn von Hoegen, K. R. Wilson, D. von der Linde, and C.P.J. Barty. 1999. Ultrafast X-ray Diffraction study of transient extreme states of matter: non-thermal melting. Science, 286, 1340-1342.

Rose-Petruck, C., R. Jimenez, T. Guo, A. Cavalleri, C. W. Siders, J. A. Squier, B. C. Walker, K. R. Wilson, and C. P. J Barty. 1999. Picosecond-milliangstrom lattice dynamics measured with ultrafast X-ray diffraction. Nature, 398, 310-312.

Barty, C. P. J., T. Guo, C. LeBlanc, F. Raksi, C. Rose-Petruck, J. A. Squier, K. R. Wilson, V. V.Yakovlev, and K. Yamakawa. 1996. Generation of 18-fs, Multiterawatt Pulses Using Regenerative Pulse Shaping and Chirped Pulse Amplification. Optics Letters, 21, 668-670.

Guo, T., P. Nicolaev, A. Thess, D. T. Colbert, and R. E. Smalley. 1995. Catalytic growth of single-walled nanotubes by laser vaporization. Chem. Phys. Lett., 243, 49-54.

Guo, T., M. D. Diener, Y. Chai, M. J. Alford, R. E. Haufler, S. M. McClure, T. Ohno, J. H. Weaver, G. E. Scuseria, and R. E. Smalley. 1992. Uranium stabilization of C28: a tetravalent fullerene. Science, 257, 1661-1664.