Conical Diffraction and Composite Lieb Bosons in Photonic Lattices

Falko Diebel, Daniel Leykam, Sebastian Kroesen, Cornelia Denz, Anton S. Desyatnikov

    Research output: Contribution to journalArticle

    64 Citations (Scopus)


    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.

    Original languageEnglish
    Article number183902
    JournalPhysical Review Letters
    Issue number18
    Publication statusPublished - May 4 2016

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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