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Opt Express. 2009 Sep 28;17(20):18196-208. doi: 10.1364/OE.17.018196.

Dynamics of linear polarization conversion in uniaxial crystals.

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  • 1Nonlinear Physics Centre and Laser Physics Centre, Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200, Australia.


We report on the experimental and theoretical investigation of polarization conversion of linearly polarized Gaussian beam propagating in perpendicularly cut homogeneous uniaxial crystals. We derive analytical expressions, in good agreement with experimental data, for power transfer between components at normal incidence accompanied by the generation of a topological quadrupole. We extend the results to the oblique incidence case and confirm experimentally the optimal parameters for generation of a single charge on-axis optical vortex, including spectrally resolved measurements for the white-light beams.

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