Journal
PHYSICAL REVIEW LETTERS
Volume 116, Issue 18, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.116.183902
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Funding
- Australian Research Council
- German Academic Exchange Service
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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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