scholarly journals Observation of Chain Dynamics in Depolarized Light Scattering Spectra of Polymers

2004 ◽  
Vol 37 (24) ◽  
pp. 9273-9278 ◽  
Author(s):  
Yifu Ding ◽  
V. N. Novikov ◽  
A. P. Sokolov ◽  
R. Casalini ◽  
C. M. Roland
Keyword(s):  
Light Scattering ◽  
Chain Dynamics ◽  
Scattering Spectra ◽  
Depolarized Light Scattering

Depolarized light scattering and neutron scattering spectra for noble gas fluids

1987 ◽  
Vol 87 (1) ◽  
pp. 687-696 ◽  
Author(s):  
A. A. van Well ◽  
I. M. de Schepper ◽  
P. Verkerk ◽  
R. A. Huijts
Keyword(s):  
Light Scattering ◽  
Neutron Scattering ◽  
Noble Gas ◽  
Scattering Spectra ◽  
Depolarized Light Scattering

Etude par Fabry–Perot des spectres dépolarisés et polarisés du pentachlorobiphenyl liquide entre −54 et +150 °C

1982 ◽  
Vol 60 (11) ◽  
pp. 1709-1715 ◽  
Author(s):  
P. Bezot ◽  
C. Hesse-Bezot
Keyword(s):  
Relaxation Time ◽  
Light Scattering ◽  
Low Frequency ◽  
High Viscosity ◽  
Shear Rigidity ◽  
Fabry Perot ◽  
Rigidity Modulus ◽  
Scattering Spectra ◽  
Full Temperature ◽  
Depolarized Light Scattering

A low frequency study (Fabry–Perot) of the polarized and depolarized light scattering spectra of liquid pentachlorobiphenyl is presented from −54 to +150 °C.The relaxation time deduced from the depolarized spectra is measured as a function of temperature and compared with the time obtained by means of other techniques.The weak propagative depolarized doublet is studied at high viscosity, from −54 to +42 °C. The value of the shear rigidity modulus Gx is obtained almost up to the relaxation domain.The Brillouin polarized doublet is also analyzed in the full temperature range and the values of the compressional moduli are calculated.

Observation of Extra-High Depolarized Light Scattering Spectra from Gold Nanorods

2008 ◽  
Vol 112 (33) ◽  
pp. 12760-12768 ◽  
Author(s):  
Boris N. Khlebtsov ◽  
Vitaly A. Khanadeev ◽  
Nikolai G. Khlebtsov
Keyword(s):  
Light Scattering ◽  
Gold Nanorods ◽  
Scattering Spectra ◽  
Depolarized Light Scattering

Viscoelastic properties of liquid pentachlorobiphenyl under pressure using depolarized light scattering

1983 ◽  
Vol 61 (9) ◽  
pp. 1291-1296 ◽  
Author(s):  
P. Bezot ◽  
C. Hesse-Bezot ◽  
Ph. Pruzan
Keyword(s):  
High Pressure ◽  
Light Scattering ◽  
Shear Modulus ◽  
Viscoelastic Properties ◽  
Pressure Range ◽  
Glassy State ◽  
Molecular Liquids ◽  
Large Pressure ◽  
Scattering Spectra ◽  
Depolarized Light Scattering

A study of the depolarized light scattering spectra of high pressure supercooled pentachlorobiphenyl is presented. From the analysis of the propagative shear doublet, the infinite shear modulus Gx is measured over a large pressure range, at various temperatures, up to a pressure where the liquid is in a glassy state. Gx(P) is found to vary linearly at each temperature. From values of Gx (P = 0.1 MPa) together with those obtained in a previous paper at P = 0.1 MPa as a function of T, it is concluded that Gx(T) is linear over 70 °C, contrary to what is generally obtained in most of the supercooled molecular liquids.

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