论文信息 - Third‐order polarizabilities of long‐chain molecules

Third‐order polarizabilities of long‐chain molecules

The third‐order polarizabilities of several alkanes and polyenes have been deduced from third harmonic measurements. For satured hydrocarbons, γ increases linearly with the number of atoms, whereas for polyenes, a strong exaltation is found, with a superlinear increase. This behavior, attributed to delocalized π electron cloud, is in quantitative agreement with the results of a previous theoretical analysis. Large values of χ(3)≃10−12 esu are found in molten retinol and retinal.

J. Ducuing | J. Ducuing | J. P. Hermann | J. Hermann

[1] D. Ricard,et al. Optical nonlinearities in conjugated systems: β‐carotene , 1973 .

[2] N. Bloembergen,et al. Interactions between light waves in a nonlinear dielectric , 1962 .

[3] K. Rustagi,et al. Third-order optical polarizability of conjugated organic molecules☆ , 1974 .

[4] G. Mayer,et al. Mesure des interactions entre ondes lumineuses dans diverses substances , 1971 .

[5] C. R. Noller. Methoden der organischen Chemie. , 1954 .

[6] G. Boyd,et al. STUDY OF OPTICAL DIFFERENCE MIXING IN Ge AND Si USING A CO2 GAS LASER , 1968 .

[7] J. P. Hermann,et al. Absolute measurements of third order susceptibilities , 1973 .