Nonlinear Optical Polarizabilities of Molecules.
MICHIGAN UNIV ANN ARBOR DEPT OF PHYSICS
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A review is given of the relation between microscopic and macroscopic forms of electric tensor properties of both second and third orders. The Second Harmonic Generation process in a focused laser beam for a particular dc field geometry is also reviewed, and the treatment is extended to include anomalously dispersive gases. Hyperpolarizabilities and hyperpolarizability ratios have been measured for the molecules H2, N2, O2, CO, NO, CO2, SF6, NH3, H2S, H2O, CH3 2O, and CH3OH. The results are presented and compared with theoretical and experimental data from other sources. Agreement with most other gas-phase experimental data is good, and where this is not the case, we believe our data to be the more reliable. Special points of interest are discussed for several of the molecules. Author
- Electricity and Magnetism