Tessa R. Calhoun

Assistant Professor - Department of Chemistry

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Prof. Calhoun earned her B. S. in Chemistry from Iowa State University and Ph.D. in Chemistry from the University of California, Berkeley.  She went on to become a Lewis-Sigler Fellow at Princeton University before joining the faculty in the Department of Chemistry at the University of Tennessee, Knoxville as an Assistant Professor in 2013.  Her research focuses on using ultrafast laser technology to advance nonlinear microscopies in order to image drug-membrane interactions.

Focus Areas: Optical Microscopy | Drug Delivery | Drug-membrane Interactions

Skills and Expertise: Ultrafast Spectroscopy | Nonlinear Optics | Excited State Dynamics of Biomolecules

Selected Publications:

Elucidation of the Timescales and Origins of Quantum Electronic Coherence in LHCII
G.S. Schlau-Cohen, A. Ishizaki, T.R. Calhoun, N.S. Ginsberg, M. Ballottari, R. Bassi, and G.R. Fleming, Nature Chemistry, vol. 4, pp. 389-395, 2012.
Two-Dimensional Electronic Spectroscopy Reveals the Dynamics of Phonon-Mediated Excitation Pathways in Semiconducting Single-Walled Carbon Nanotubes
M.W. Graham, T.R. Calhoun, A.A. Green, M.C. Hersam, and G.R. Fleming, Nano Letters, vol. 12, no. 2, pp. 813-819, 2012.
The Separation of Overlapping Transitions in β-carotene with Broadband 2D Electronic Spectroscopy
T.R. Calhoun, J.A. Davis, M.W. Graham, and G.R. Fleming , Chemical Physics Letters, vol. 523, pp. 1-5, 2012.
Quantum Coherence in Photosynthetic Complexes
T.R. Calhoun and G.R. Fleming , Physica Status Solidi (b), vol. 248, no. 4, pp. 833-838, 2011.
Ultrafast Optical Multidimensional Spectroscopy Without Interferometry
J.A. Davis, T.R. Calhoun, K.A. Nugent, and H.M. Quiney, Journal of Chemical Physics, vol. 134, no. 2 , 2011.
Spectroscopic Elucidation of Uncoupled Transition Energies in the Major Photosynthetic Light-harvesting Complex, LHCII
G.S. Schlau-Cohen, T.R. Calhoun, N.S. Ginsberg, M. Ballottari, R. Bassi, and G.R. Fleming, Proceedings of the National Academy of Sciences, vol. 107, no. 30, pp. 13276-13281, 2010.
Quantum Coherence and its Interplay with Protein Dynamics in Photosynthetic Electronic Energy Transfer
A. Ishizaki, T.R. Calhoun, G.S. Schlau-Cohen, and G.R. Fleming , Physical Chemistry Chemical Physics, vol. 12, no. 27, pp. 7319-7337, 2010.
Quantum Coherence Enabled Determination of the Energy Landscape in Light-Harvesting Complex II
T.R. Calhoun, N S. Ginsberg, G.S. Schlau-Cohen, Y.-C. Cheng, M. Ballottari, R. Bassi, and G.R. Fleming, The Journal of Physical Chemistry B, vol. 113, no. 51, pp. 16291-16295, 2009.
Pathways of Energy Flow in LHCII from Two-Dimensional Electronic Spectroscopy
G.S. Schlau-Cohen, T.R. Calhoun, N.S. Ginsberg, E.L. Read, M. Ballottari, R. Bassi, and G.R. Fleming , The Journal of Physical Chemistry B, vol. 113, no. 46, pp. 15352-15363, 2009.
Evidence for Wavelike Energy Transfer Through Quantum Coherence in Photosynthetic Systems
G.S. Engel, T R. Calhoun, E.L. Read, T.K. Ahn, T. Mancal, Y.-C. Cheng, R.E. Blankenship, and G.R. Fleming , Nature, vol. 446, pp. 782-786, 2007.