The Engel Group at The University of Chicago

The Engel Group strives to exploit femtosecond dynamics to steer and to control excited state reactivity. We use a combination of ultrafast spectroscopy, theory, synthesis, and biophysics to approach this problem.


 

Revealing Nature's Designs

Nature has had 2.4 billion years to evolve and engineer excited state dynamics. From photosynthesis to vision to photoenzymes, we examine natural mechanisms to steer excited states. Our goal is to isolate and identify new design principles to control quantum dynamics.

Steering Excited State Dynamics

Electronic excited states carry enough energy to make and break chemical bonds. Photochemistry operates outside the Born-Oppenheimer regime -- thereby escaping our standard chemical intuition. We seek new strategies to steer excited states and to control their reactivity.

 

Seeing the Unseen

You can't engineer what you can't see. We build new spectroscopic tools to probe femtosecond dynamics of electronic excitations. In living cells, protein complexes, and small molecules, we capture how these systems evolve with unprecedented depth and specificity.

Fellowship   6/1/2022

Siddhartha Sohoni

Congratulations to Sid Sohoni on receiving a Freud Fellowship from the Chemistry Department to support the next year of his studies.

Congratulations   5/28/2022

Hugh CairneyAinsley Iwanicki

Congratulations to Hugh Cairney and Ainsley Iwanicki on receiving Chemistry Department Research Grants to support their summer research.

Congratulations   5/25/2022

Hugh CairneyAinsley Iwanicki

Congratulations to Hugh Cairney and Ainsley Iwanicki on receiving Quad Grants to support their summer research.

Paper Accepted   5/12/2022

Jake HigginsAnna DardiaChidera NdifeLawson LloydElizabeth Bain

Congratulations to Jake Higgins, Anna Dardia, Chidera Ndife, Lawson Lloyd, and Elizabeth Bain on having their paper entitled, "Leveraging Dynamical Symmetries in Two-Dimensional Electronic Spectra to Extract Population Transfer Pathways" accepted to Journal of Physical Chemistry A.

Quantum Biology activities within the Engel Group

Quantum Biology

Ultrafast Spectroscopy activities within the Engel Group

Ultrafast Spectroscopy

Quantum Materials activities within the Engel Group

Quantum Materials

Photocatalysis activities within the Engel Group

Photocatalysis

Theory activities within the Engel Group

Theory

Coherent Dynamics activities within the Engel Group

Coherent Dynamics

Light Harvesting Materials activities within the Engel Group

Light Harvesting Materials

Ultrafast Chiral Response activities within the Engel Group

Ultrafast Chiral Response

Live Cell Studies activities within the Engel Group

Live Cell Studies

J.S. Higgins, A.R. Dardia, C.J. Ndife, L.T. Lloyd, E.M. Bain, and G.S. Engel, "Leveraging Dynamical Symmetries in Two-Dimensional Electronic Spectra to Extract Population Transfer Pathways", JPCA (accepted)

P. Navotnaya,* S. Sohoni,* L.T. Lloyd, S. Abdulhadi, P.-C. Ting, J.S. Higgins, and G.S. Engel, "Annihilation of Excess Excitations along Phycocyanin Rods Precedes Downhill Flow to Allophycocyanin Cores in the Phycobilisome of Synechococcus elongatus PCC 7942", JPCB 126 23–29 2022.

* These authors contributed equally

J.S. Higgins, W.R. Hollingsworth, L.T. Lloyd, and G.S. Engel, "Quantum Coherence in Chemical and Photobiological Systems", Emerging Trends in Chemical Applications of Lasers, ACS Symposium Series #1398, Edited by M.R. Berman, L. Young, and H.-L. Dai, ACS Books 2021.

University of Chicago
Chemistry Department
Biophysical Sciences
Institute for Molecular Engineering
James Franck Institute
Institute for Biophysical Dynamics
MRSEC
College
quantum
spectroscopy
materials
AFOSR
DARPA
Dreyfus
Searle
Keck
DTRA
Lockheed Martin
UChicago
NSSEFF
NSF
NIH
QNRF
DOE
Sloan