We present a powerful technique to fully characterize individual gold nanorods by using confocal microscopy in
combination with higher order laser modes. We obtain topological information far beyond the optical resolution limit,
although the used method is diffraction limited. We perform, for the first time, the imaging of gold nanorods by
recording simultaneously their scattering and luminescence signal. In the future, this might permit to extent the results
achieved already in [1] to a 3D system. Moreover, the scattering pattern is strongly dependent on the phase relation
between the light scattered and reflected at the sample interface, while the luminescence pattern does not depend on this
phase relation. By exploiting an index matched sample geometry, we were able to omit the phase relation and therefore
detect the pure scattering signal and qualitatively compare it with the luminescence one. Furthermore, as previously
shown [2, 3], our technique is capable to track the rotation of single noble metal nanorods. We show that measuring the
rotation rate of gold nanorods might be useful to estimate the local viscosity of the surrounding medium.
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