@article{Electronic:3947,
      recid = {3947},
      author = {Bain, Elizabeth M.},
      title = {Towards the Study of Ultrafast Chiral Electronic Dynamics},
      publisher = {University of Chicago},
      school = {Ph.D.},
      address = {2022-06},
      pages = {113},
      abstract = {This dissertation aims to provide new methods of  interrogating the nature of electronicdynamics in chiral  materials. The superiority of photosynthetic light  harvesting over any
man-made solar light harvesting devices  motivates the study of how chirality affects  light
harvesting.
A two-dimensional ultrafast chiral  spectroscopy is designed and built. This new  instrumentation has the capability to provide vital and  unique insight into ‘handed’ electronic
dynamics. The  theory behind the cancellation of achiral background is  described. Great
care is taken in the engineering of this  instrument to optimize a very small signal against a
large  background.
A novel approach to two-dimensional electronic  spectroscopy in the pump-probe geometry
is described. The  ability to combine the background-free nature of the  BOXCARS geometry
with the inherent phase stability of the  pump-probe geometry and a temporally separated
LO results  in a ‘best of both worlds’ spectrometer.
A new model for  the extraction of energy transfer time constants from  two-dimensional
electronic spectra is described. This  method is further extended to the interpretation of  two-
dimensional circular dichroism spectroscopy. The  result is the ability to extract ’handed’
energy transfer  time constants from a simple three level model.
Lastly,  several future direction projects are proposed. First, the  study of chiral memory
in chiral aggregates of achiral  porphyrin monomers. Then, the study of chiral dynamics  in
quantum dots capped with chiral ligands in the hopes of  elucidating more about the origin
of the QD’s CD signal.  Then, an experiment to confirm a theoretically surface  specific 2DES
technique is proposed. And finally, a novel  mixed electronic-Raman experiment is proposed
to track the  effect of groundstate vibrations on the outcome of  photochemical reactions.
},
      url = {http://knowledge.uchicago.edu/record/3947},
      doi = {https://doi.org/10.6082/uchicago.3947},
}