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- W4288043263 abstract "Band theory for partially coherent light is introduced by using the formalism of second-order classical coherence theory under paraxial approximation. It is demonstrated that the cross-spectral density function, describing correlations between pairs of points in the field, can have bands and gaps and form a correlation band structure. The propagation of a partially coherent beam in non-Hermitian periodic structures is considered to elucidate the interplay between the degree of coherence and the gain/loss present in the lattice. We apply the formalism to study partially coherent Bloch oscillations in lattices having parity-time symmetry and demonstrate that the oscillations can be sustained in such media but they are strongly dependent upon the spatial correlations of the beam. A transition between breathing and oscillating modes is shown to be induced by the degree of spatial coherence." @default.
- W4288043263 created "2022-07-27" @default.
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- W4288043263 date "2022-07-22" @default.
- W4288043263 modified "2023-09-29" @default.
- W4288043263 title "Propagation of Partially Coherent Light in non-Hermitian Lattices" @default.
- W4288043263 doi "https://doi.org/10.48550/arxiv.2207.11086" @default.
- W4288043263 hasPublicationYear "2022" @default.
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