Poly near field scanning optical

J. Teetsov and D.A. Vanden Bout, Near-field scanning optical microscopy (NSOM) studies of nanoscale polymer ordering in pristine films of poly(9,9-dialkytfluorene). J. Phys. Chem. B, 104, 9378 (2000). 

As a technique complementary to AFM, near-field scanning optical microscopy (NSOM) studies have reported the nanoscale topographic and fluorescence features of poly(fluorene)s [156-158]. From the NSOM experiments, it is possible to quantify the film optical anisotropy on the local scale by measuring the polarization of the emitted light. The intensity of fluorescence is found to be the most when collected perpendicular to the fibril axis. Since the fluorescence is polarized along the conjugated backbone, this indicates that the ribbons are indeed composed of poly(fluorene) chains stacked orthogonal to the ribbon axis. 

Aoki, H., Morita, S., Sekine, R. and Ito, S. (2008) Conformation of single poly(methyl methacrylate) chains in ultra-thin film studied by scanning near-field optical microscopy. Polym. J 40, 274-280. 

Ube, T., Aoki, H., Ito, S., Horinaka, J.I., Takigawa, T. Affine eformation of single polymer chain in poly(methyl methacrylate) films under uniaxial extension observed by scanning near-field optical microscopy. Polymer 50, 3016-3021 (2009)... 

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