Conical Diffraction and Composite Lieb Bosons in Photonic Lattices
Date
2016
Authors
Diebel, Falko
Leykam, Daniel
Kroesen, S
Denz, Cornelia
Desyatnikov, Anton S
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American Physical Society
Abstract
Pseudospin describes how waves are distributed between different “internal” degrees of freedom or microscopic states, such as polarizations, sublattices, or layers. Here, we experimentally demonstrate and explain wave dynamics in a photonic Lieb lattice, which hosts an integer pseudospin s=1 conical intersection. We study the most striking differences displayed by integer pseudospin states: pseudospin-dependent conical diffraction and the generation of higher charged optical vortices.
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Physical Review Letters
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Journal article
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Open Access
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