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Title: Conical Diffraction and Composite Lieb Bosons in Photonic Lattices
Authors: Diebel, Falko
Leykam, Daniel
Kroesen, Sebastian
Denz, Cornelia
Desyatnikov, Anton S.
Keywords: Conical Intersection
Conical Diffraction
Issue Date: 2016
Source: Diebel, F., Leykam, D., Kroesen, S., Denz, C., & Desyatnikov, A. S. (2016). Conical Diffraction and Composite Lieb Bosons in Photonic Lattices. Physical Review Letters, 116(18), 183902-.
Series/Report no.: Physical Review Letters
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.
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.116.183902
Rights: © 2016 American Physical Society (APS). This paper was published in Physical Review Letters and is made available as an electronic reprint (preprint) with permission of American Physical Society (APS). The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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