Homogeneous vibrational dynamics and inhomogeneous broadening in glass‐forming liquids: Infrared photon echo experiments from room temperature to 10 K

1995 ◽  
Vol 103 (8) ◽  
pp. 2810-2826 ◽  
Author(s):  
A. Tokmakoff ◽  
M. D. Fayer
Keyword(s):  
Room Temperature ◽  
Photon Echo ◽  
Inhomogeneous Broadening ◽  
Vibrational Dynamics ◽  
Glass Forming ◽  
Infrared Photon

Site-specific vibrational dynamics of the CD3ζ membrane peptide using heterodyned two-dimensional infrared photon echo spectroscopy

2004 ◽  
Vol 120 (21) ◽  
pp. 10215-10224 ◽  
Author(s):  
Prabuddha Mukherjee ◽  
Amber T. Krummel ◽  
Eric C. Fulmer ◽  
Itamar Kass ◽  
Isaiah T. Arkin ◽  
...  
Keyword(s):  
Photon Echo ◽  
Two Dimensional ◽  
Vibrational Dynamics ◽  
Site Specific ◽  
Infrared Photon ◽  
Membrane Peptide

Room-Temperature Optical Tunability and Inhomogeneous Broadening in 2D-Layered Organic–Inorganic Perovskite Pseudobinary Alloys

2014 ◽  
Vol 5 (22) ◽  
pp. 3958-3963 ◽  
Author(s):  
Gaëtan Lanty ◽  
Khaoula Jemli ◽  
Yi Wei ◽  
Joël Leymarie ◽  
Jacky Even ◽  
...  
Keyword(s):  
Room Temperature ◽  
Inhomogeneous Broadening ◽  
Inorganic Perovskite

Structural Dynamics of Rotaxanes Studied by Infrared Photon Echo Spectroscopy

2007 ◽  
pp. 430-432
Author(s):  
Sergey Yeremenko ◽  
Olaf F. A. Larsen ◽  
Pavol Bodis ◽  
Wybren Jan Buma ◽  
Jeffrey S. Hannam ◽  
...  
Keyword(s):  
Structural Dynamics ◽  
Photon Echo ◽  
Infrared Photon

scholarly journals Fast Vibrational Modes and Slow Heterogeneous Dynamics in Polymers and Viscous Liquids

2019 ◽  
Vol 20 (22) ◽  
pp. 5708 ◽  
Author(s):  
Francesco Puosi ◽  
Antonio Tripodo ◽  
Dino Leporini
Keyword(s):  
Einstein Relation ◽  
Special Focus ◽  
Vibrational Dynamics ◽  
Viscous Liquids ◽  
Dynamical Heterogeneity ◽  
Glass Forming ◽  
Slowing Down ◽  
Molecular Glass ◽  
Distinctive Aspect ◽  
Glass Forming Materials

Many systems, including polymers and molecular liquids, when adequately cooled and/or compressed, solidify into a disordered solid, i.e., a glass. The transition is not abrupt, featuring progressive decrease of the microscopic mobility and huge slowing down of the relaxation. A distinctive aspect of glass-forming materials is the microscopic dynamical heterogeneity (DH), i.e., the presence of regions with almost immobile particles coexisting with others where highly mobile ones are located. Following the first compelling evidence of a strong correlation between vibrational dynamics and ultraslow relaxation, we posed the question if the vibrational dynamics encodes predictive information on DH. Here, we review our results, drawn from molecular-dynamics numerical simulation of polymeric and molecular glass-formers, with a special focus on both the breakdown of the Stokes–Einstein relation between diffusion and viscosity, and the size of the regions with correlated displacements.

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