Journal
NEW JOURNAL OF PHYSICS
Volume 20, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/aab483
Keywords
waveguide lattices; periodic structures; flat-bands; orbital excitation
Categories
Funding
- Millennium Institute for Research in Optics (MIRO)
- FONDECYT [1151444]
- UK Science and Technology Facilities Council (STFC) [ST/N000625/1]
- [ICM RC130001]
- STFC [ST/N000625/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/N000625/1] Funding Source: researchfish
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We report on the experimental realization of a quasi-one-dimensional photonic graphene ribbon supporting four flat-bands (FBs). We study the dynamics of fundamental and dipolar modes, which are analogous to the s and p orbitals, respectively. In the experiment, both modes (orbitals) are effectively decoupled from each other, implying two sets of six bands, where two of them are completely flat (dispersionless). Using an image generator setup, we excite the s and p FB modes and demonstrate their non-diffracting propagation for the first time. Our results open an exciting route towards photonic emulation of higher orbital dynamics.
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