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Updated: Aug 5, 2026

Atomic Scale Structural Studies of Macromolecular Assemblies by Solid-state Nuclear Magnetic Resonance Spectroscopy
Published on: September 17, 2017
Novel method for selective probing of ground-state rotational dynamics of solutes in solvents
1Department of Physics, University of California, Berkeley, California 94720, USA.
Abstract:
We introduce an optical pump/probe method that allows selective measurement of ground-state rotational dynamics of solutes in liquids. It relies on employing two successive pump pulses that are adjusted to create an optical anisotropy due to the orientational distribution of only the ground-state solute molecules. Measurement on a dye-solvent system shows a large difference between the rotational diffusion rates of the ground state and the excited state of the dye molecules due to different solute-solvent interactions.
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