Ultrafast infrared spectroscopy reveals the structural and dynamical heterogeneity of glassy materials

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The remarkable properties of glassy materials arise from their complex amorphous structures and dynamics. The heterogeneity of these materials was studied on molecular length scales and picosecond time scales using a combination of polarization-selective IR pump-probe and 2D IR experiments and a vibrational chromophore that is sensitive to local chemical and electrical environments. By monitoring the restricted orientational motion of the chromophore in a polymer, the distribution of sub-nanometer pores could be explored. The same chromophore in a hydrogen-bonding system showed extreme polarization dependence in the 2D line shape, providing evidence for significant dynamical heterogeneity in the supercooled liquid phase.


Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2020; ©2020
Publication date 2020; 2020
Issuance monographic
Language English


Author Hoffman, David John
Degree supervisor Fayer, Michael D
Thesis advisor Fayer, Michael D
Thesis advisor Moerner, W. E. (William Esco), 1953-
Thesis advisor Zare, Richard N
Degree committee member Moerner, W. E. (William Esco), 1953-
Degree committee member Zare, Richard N
Associated with Stanford University, Department of Chemistry


Genre Theses
Genre Text

Bibliographic information

Statement of responsibility David J. Hoffman.
Note Submitted to the Department of Chemistry.
Thesis Thesis Ph.D. Stanford University 2020.
Location electronic resource

Access conditions

© 2020 by David John Hoffman
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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