1995
DOI: 10.1063/1.470517
|View full text |Cite
|
Sign up to set email alerts
|

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

Abstract: A study of the temperature dependence of the homogeneous linewidth and inhomogeneous broadening of a high-frequency vibrational transition of a polyatomic molecule in three molecular glass-forming liquids is presented. Picosecond infrared photon echo and pump-probe experiments were used to examine the dynamics that give rise to the vibrational line shape. The homogeneous vibrational linewidth of the asymmetric CO stretch of tungsten hexacarbonyl ͑ϳ1980 cm Ϫ1 ͒ was measured in 2-methylpentane, 2-methyltetrahydr… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

4
190
0
1

Year Published

1996
1996
2016
2016

Publication Types

Select...
8
1

Relationship

2
7

Authors

Journals

citations
Cited by 174 publications
(195 citation statements)
references
References 68 publications
4
190
0
1
Order By: Relevance
“…29,30,[137][138][139][140] Third-order infrared or seventh-order Raman processes 141,142) are shown to be sensitive to the local fluctuation of the molecules surrounding the target molecules and the conformal change of molecules, 121,123,143) which are not so clear for the linear spectroscopy discussed in §4.5. Three-pulse vibrational echo techniques were applied to the molecular stretching mode 144) and hydrogen bonding interaction between the solute and the solvent. 125,126) Some calculations in the fifth-order Raman and thirdorder IR measurements were carried out using the theory developed for the electronically resonant spectroscopy explained in §4.…”
Section: Molecular Vibrational Spectroscopymentioning
confidence: 99%
“…29,30,[137][138][139][140] Third-order infrared or seventh-order Raman processes 141,142) are shown to be sensitive to the local fluctuation of the molecules surrounding the target molecules and the conformal change of molecules, 121,123,143) which are not so clear for the linear spectroscopy discussed in §4.5. Three-pulse vibrational echo techniques were applied to the molecular stretching mode 144) and hydrogen bonding interaction between the solute and the solvent. 125,126) Some calculations in the fifth-order Raman and thirdorder IR measurements were carried out using the theory developed for the electronically resonant spectroscopy explained in §4.…”
Section: Molecular Vibrational Spectroscopymentioning
confidence: 99%
“…The method of choice to provide optimal spectral resolution by eliminating the inhomogeneous broadening in the IR spectrum is the photon echo. Both two-pulse (25) and three-pulse IR photon echoes (26) of vibrations have been studied previously, but in these echo experiments the generated third-order field creates a signal on a square law detector, which is insensitive to the phase of the signal. Spectral resolution of the vibrational echo permits some phase relations to be obtained, but does not yield line-narrowed spectra.…”
mentioning
confidence: 99%
“…Under homogeneous premise, the temperature dependence of vibrational line width γ ( T ) follows a power law ( ) T T γ ∝ α , where the exponent α is greater than 1. [ 40,41 ] Here, we increase γ in the Lorentzian model from its room temperature value of 8 × 10 11 rad s −1 and observe the corresponding impact. Figure 12 a shows the broadening of the transmission dip in PMMA thin fi lm along with a pronounced intensity decrease as the line width is increased.…”
Section: Full Paper Full Paper Full Papermentioning
confidence: 75%