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20 August 2020 Ultrafast atomically resolved movies of molecular dynamics
Martin Centurion
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Proceedings Volume 11497, Ultrafast Nonlinear Imaging and Spectroscopy VIII; 114970H (2020) https://doi.org/10.1117/12.2567535
Event: SPIE Optical Engineering + Applications, 2020, Online Only
Abstract
The conversion of light into chemical and mechanical energy can take place at the level of single molecules, where the absorption of a photon leads to changes in the molecular structure on ultrafast time scales. Observing these dynamics requires simultaneously reaching atomic (sub-Angstrom) spatial resolution and femtosecond temporal resolution. We have recently showed that we can reach these milestones with ultrafast electron diffraction (UED), capturing structural dynamics in isolated molecules as they take place. We have observed bond breaking, the motion and splitting of nuclear wavepackets in complex photochemical reactions and coherent motions that persist after the reaction is completed.
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Martin Centurion "Ultrafast atomically resolved movies of molecular dynamics", Proc. SPIE 11497, Ultrafast Nonlinear Imaging and Spectroscopy VIII, 114970H (20 August 2020); https://doi.org/10.1117/12.2567535
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KEYWORDS
Ultrafast phenomena
Molecules
Absorption
Diffraction
Photosynthesis
Solar energy
Solar processes
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