Abstract
Within photonic crystals, modes of light with unusual polarization properties can arise. A striking example of this occurs in the structures known as “W1” waveguides (made by removing a single line of holes from a triangular lattice of air holes). In these waveguides the local polarization ellipse varies spatially, with polarization singularities, known as C-points, or circular points, where the field rotates as a function of time [1].
© 2015 IEEE
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