Abstract
The interest in the nonlinear optical (NLO) properties of the fullerenes lies in their unique structure and symmetry. Our previous studies have focused on the NLO behavior of pristine films of the fullerenes in the near-infrared1,2 and in the visible.3 Recently, C60 has been polymerized by irradiation of oxygen-free films with visible and ultraviolet light.4 It was found that oxygen plays an important role in the photochemistry of C60. In addition, we have recently reported on the photo-assisted diffusion of O2 into solid C60 as well as its photo-oxidation.5,6 The present paper addresses the effect that altering the electronic and chemical structure of C60 through photopolymerization or oxygen doping has on the NLO properties and the dynamics of the NLO response.
© 1994 Optical Society of America
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