Relaxation of the optical Kerr effect of anisotropic molecules in mixed liquids
โ Scribed by P.P. Ho; W. Yu; R.R. Alfano
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 584 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
The relzuation time of' the Kerr effect of nitrobonzcne and 'rn-nitrotuluzne in variorrs mixtures Mth carbon tetrachloride and various alcohols was determined by mcasurin# the kinetics of thti Kerr effcci usinp picosecond laser techniques. These measurements yield information on the rotrirional motion or molecules in liquids. The relaxation time data are interpreted in terms ol an effective local viscosity erfcct, pair cnrrclarion, 2nd coupling of rotationA motion with shear modes.
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The optical Kerr effect of liquid nitrobenzene and chlorobenzene is probed with 65 fs optical pulses at 633 nm. We observe an instantaneous signal contribution which is attributed to the incoherent (dephased) electronic component of the third-order nonlinear susceptibility x"'. Additionally, three n
The relaxation hmes of the opticat Kerr effect of rli~o~n~ene and in-nitrotoiue~e have been measured a$ Q function of tcmpcrature in neat and ntired bmmy liquids. The activation energy of molecular reorientation motion for various solutions 1~s been determined from Kerr effect and viscosity mexarcme
Description of the average orientation of non-rigid molecules in anisotroplc fluids is non-trivial. The assumption that molecuku orientation is independent of conformation is discussed. For such a case. the Euler angles relatirs each conformation to the common order-tensor axes must still be known.