 Andreas C. Albrecht Professor, Born 1943
B.S. 1965, Union College
Ph.D. 1970, Johns Hopkins University
Room: 3209
Phone: 608-262-0351
Email: wright@chem.wisc.edu
Position: Professor
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A. V. Pakoulev, M. A. Rickard, N. A. Mathew, K. M. Kornau, J. C. Wright, J Phys Chem A, 112, 6320 (2008). "Frequency-domain time-resolved four wave mixing spectroscopy of vibrational coherence transfer with single-color excitation." -
A. V. Pakoulev, M. A. Rickard, N. A. Mathew, K. M. Kornau and J. C. Wright; J Phys Chem A 111, 6999-7005 (2007). "Spectral quantum beating in mixed frequency/time-domain coherent multidimensional spectroscopy." -
Mark A. Rickard, Andrei V. Pakoulev, Nathan A. Mathew, Kathryn M. Kornau, and John C. Wright; J. Phys. Chem. A 111, 1163 - 1166 (2007). "Frequency- and Time-Resolved Coherence Transfer Spectroscopy." -
M. A. Rickard, A. V. Pakoulev, K. Kornau, N. A. Mathew and J. C. Wright; J. Phys. Chem. A 110, 11384-11387 (2006). "Interferometric Coherence Transfer Modulations in Triply Vibrationally Enhanced Four-Wave Mixing." -
Andrei V. Pakoulev, Mark A. Rickard, Kent A. Meyer, Kathryn Kornau, Nathan A. Mathew, David E. Thompson, and John C. Wright, J. Phys. Chem. A, 110, 3352-3355 (2006). "Mixed frequency/time domain optical analogues of heteronuclear multidimensional NMR" Daniel M. Besemann, Kent A. Meyer, and John C. Wright, J. Phys. Chem. B, 108, 10493-10505 (2004). "Spectroscopic Characteristics of Triply Vibrationally Enhanced Four Wave Mixing Spectroscopy." Kent A. Meyer, David E. Thompson, and John C. Wright, J. Phys. Chem. A, 108, 11485-11493 (2004). "Frequency and Time-Resolved Triply Vibrationally Enhanced Four-Wave Mixing Spectroscopy." Kent A. Meyer and John C. Wright, J. Phys. Chem. A, 107, 8388-8395 (2003). "Interference, Dephasing, And Coherent Control In Time-Resolved Frequency Domain Two Dimensional Vibrational Spectra." Kent A. Meyer and John C. Wright, Chem. Phys. Letters, 381, 642-649 (2003). "Coherent Two Dimensional Spectroscopy with Triply Vibrationally Enhanced Infrared Four Wave Mixing." John C. Wright, Nicholas J. Condon, Keith M. Murdoch, Daniel M. Besemann, and Kent A. Meyer, J. Phys. Chem. A, 107, 8166"8176 (2003). "Quantitative Modeling of Nonlinear Processes in Coherent Two-Dimensional Vibrational Spectroscopy."
| Research Description
Our group has been developing the field of coherent multidimensional spectroscopy (CMDS), the optical analogue of multidimensional NMR methods. Our approach is unique in using a mixed frequency/time domain approach to CMDS. Our laser system creates multiple independently tunable sub-femtosecond excitation beams to excite a quantum mechanical superposition state involving multiple electronic and/or vibrational states of molecules and materials. The superposition state reemits multiple beams that are created by each pair of states within the superposition. Tuning the excitation frequencies provides multidimensional spectra with cross-peaks between quantum states that are coupled by intra- or inter-molecular interactions so CMDS is selective for interactions. Changing the time delays between excitation pulses provides the complete dynamics of the coherences and populations present in the superposition state. Frequency domain methods have the advantage that they uniquely define the quantum states involved in the superposition state, they can access zero and multiple quantum coherences, and their independently tunable excitation frequencies provides complete coverage over all quantum states of interest.
We have applied these methods to measuring the electronic and vibrational states of molecules and the properties of materials. This work has provided the nonlinear methods of MENS, MEPS, SIVE, DOVE, and TRIVE four wave mixing spectroscopies. It has also led to the discovery of frequency domain quantum beating, coherence transfer, coherence transfer spectroscopy, and multiple quantum coherence spectroscopy. These nonlinear methods represent a new family of optical spectroscopies that will bring the selectivity of NMR methods to traditional optical spectroscopies. Our group's mission is to both continue developing this exciting new family of spectroscopies and applying the methods to materials science, chemical measurement, molecular spectroscopy, protein-protein, protein-DNA, DNA-DNA interactions, and coherent control of electron transfer dynamics. We expect coherent multidimensional nonlinear methods will take their place beside multidimensional NMR as one of our most powerful structural tools for studying chemical and biochemical systems.
Last Updated: January 15, 2009
Graduate Student Faculty Liaison Committee Mentor Award, 2008 Fellow of the American Association for the Advancement of Science, 2005 NSF Creativity Grant Extension, 2005-2007 Fellow of the American Physical Society, 2003 Benjamin Smith Reynolds Award for Teaching Excellence in Engineering, 2002 Dow Lecturer at University of British Columbia, 2002 Andreas C. Albrecht Chair of Chemistry, 2001-present Kellett Mid-Career Faculty Researcher Award, 1997-present Chancellor's Excellence in Teaching Award, 1994 - Upjohn Award for Excellence in Teaching, 1992
- Evan Helfaer Chair of Chemistry, 1991-1996
- American Chemical Society Award in Spectrochemical Analysis, 1991
Evan Helfaer Chair of Chemistry, 1991-1996 American Chemical Society Award in Spectrochemical Analysis, 1991 - A. I. Romnes Faculty Fellow, 1984
A.I. Romnes Faculty Fellow, 1984 - Applied Spectroscopy Society William F. Meggars Award, 1981
Applied Spectroscopy Society William F. Meggars Award, 1981 DuPont Assistant Professor, 1972 - Phi Beta Kappa
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