The Harper–Hofstadter Hamiltonian and conical diffraction in photonic lattices with grating assisted tunneling
| Autor: | Hrvoje Buljan, Robert Pezer, Marin Soljacic, Dario Jukić, Tena Dubček, Karlo Lelas |
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| Přispěvatelé: | Massachusetts Institute of Technology. Department of Physics, Soljacic, Marin |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Diffraction
High Energy Physics::Lattice FOS: Physical sciences General Physics and Astronomy Physics::Optics Dielectric synthetic magnetic fields photonic lattices Dirac points Grating symbols.namesake Quantum tunnelling Physics Condensed Matter::Quantum Gases Condensed matter physics Conical surface Condensed Matter::Mesoscopic Systems and Quantum Hall Effect NATURAL SCIENCES. Physics Magnetic field PRIRODNE ZNANOSTI. Fizika Quantum Gases (cond-mat.quant-gas) Topological insulator symbols Light-matter interaction photonic lattices synthetic magnetic field conical diffraction Harper-Hofstadter Hamiltonian Condensed Matter - Quantum Gases Hamiltonian (quantum mechanics) Physics - Optics Optics (physics.optics) |
| Zdroj: | IOP Publishing New Journal of Physics Volume 17 Issue 12 |
| ISSN: | 1367-2630 |
| Popis: | We propose the realization of a grating assisted tunneling scheme for tunable synthetic magnetic fields in optically induced one- and two-dimensional dielectric photonic lattices. As a signature of the synthetic magnetic fields, we demonstrate conical diffraction patterns in particular realization of these lattices, which possess Dirac points in k-space. We compare the light propagation in these realistic (continuous) systems with the evolution in discrete models representing the Harper–Hofstadter Hamiltonian, and obtain excellent agreement. Ministry of Science, Education and Sports of the Republic of Croatia (Unity through Knowledge Fund Grant 5/13) United States. Dept. of Energy. Office of Science (Solid-State Solar-Thermal Energy Conversion Center Award DE-SC0001299/DE-FG02-09ER46577) Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies (Contract W911NF-13-D-0001) |
| Databáze: | OpenAIRE |
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