Author
B. Vishwanathan
Bio: B. Vishwanathan is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Dipole & Kerr effect. The author has an hindex of 1, co-authored 1 publications receiving 6 citations.
Topics: Dipole, Kerr effect, Mole fraction
Papers
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TL;DR: In this paper, the dipole-dipole interaction between the participating components in a number of polar-polar organic binary liquid mixtures belonging to aprotic-aprotic and aproic-protic categories has been established through dipole moment studies.
6 citations
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TL;DR: In this paper, the variations of dipole moment and correlation factor, g, with mole fraction in these mixtures were investigated using a unified quasichemical method described by Durov.
33 citations
TL;DR: In this article, relative permittivity measurements were made on binary mixtures of (2-butanol + 2-butanone) and (2butanol or 2butanol+cyclohexane) for various concentrations at T = (298.2 to 318.2) K. Some experimental results are compared with those obtained from theoretical calculations and interpreted in terms of homo- and heterogeneous interactions and structural effects.
26 citations
TL;DR: Analysis of the results obtained showed that, in contrast to the optical excitation, the interaction of a permanent dipole moment of molecules with a THz field makes a significant contribution to the transient birefringence and Kerr constants.
Abstract: The terahertz induced optical birefringence in liquids with polar (acetone, chloroform) and nonpolar (benzene, carbon tetrachloride) molecules has been investigated. Fast and slow responses were extracted from the experimental data and compared with previous studies of the femtosecond optical Kerr effect. Terahertz Kerr constants were found and compared with known DC and optical constants. Analysis of the results obtained showed that, in contrast to the optical excitation, the interaction of a permanent dipole moment of molecules with a THz field makes a significant contribution to the transient birefringence and Kerr constants. This conclusion fully agrees with the direct comparison of the femtosecond optical and THz Kerr effects reported by Sajadi et al. [Nat. Commun. 8, 14963 (2017)].
15 citations
TL;DR: In this article, the influence of solvent-solvent interaction on the visible spectra of crystal violet was investigated, where the authors measured the shape and intensity of absorption bands as well as solvent-solute and solute−solute interactions.
12 citations
TL;DR: In this paper, the electro optical Kerr coefficients of binary liquid mixtures, comprising of aprotic-aprotic molecules only, are measured over the temperature range of 286 K to 315 K.
Abstract: The electro optical Kerr coefficients of binary liquid mixtures, comprising of aprotic-aprotic molecules only, are measured over the temperature range of 286 K to 315 K. To with in experimental errors, the logarithm of Kerr coefficient can be expressed as Van't Hoff type expression to the reciprocal of temperature. Information on the interaction energy between the constituents of the binary mixtures is thereby obtained. It is found that the interaction energy in aromatic ketone-aliphatic nitrile binary mixtures is comparatively higher than in the binary mixtures with aliphatic ketone-aliphatic nitriles, aromatic ketone-aromatic nitrile and aromatic ketone-aliphatic ketones components. This is attributed to the dipole-dipole interaction existing between the components of the binary mixtures.
2 citations