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Nonlinear optical properties of N-(4-nitrophenyl)-(L)-prolinol doped with fullerenes: mechanisms of optical limiting

The non-linear transmission of the laser radiation in the fullerene-containing NPP films has been investigated. Optical limiting of the laser radiation has been observed in the UV and visible spectral regions. The results obtained have been explained by reverse saturable absorption, two- photon and carrier-free absorption, and charge transfer complex formation.