Nonlinear optical response of C_60 and C_70
Dieter NeherCenter for Research in Electro-Optics and Lasers, University of Central Florida, Orlando, Florida 32826Frank A. TinkerDepartment of Physics, University of Arizona, Tucson, Arizona 85721N. PeyghambarianOptical Sciences Center, University of Arizona, Tucson, Arizona 85721G. I. StegemanCenter for Research in Electro-Optics and Lasers, University of Central Florida, Orlando, Florida 32826
1992en
ABI
Annotatsiya
Second-order hyperpolarizibilities γ of the buckminsterfullerenes C70 at three different wavelengths were determined by third-harmonic generation in a toluene solution and compared with those of C60. Strong effects with γ exceeding 5 × 10−32 esu were observed in the three-photon resonant regime. The nonresonant measurements indicate a negative real hyperpolarizibility in C70 and a positive γ for C60, both of the order of 10−33 esu.
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