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Optically defined cavities in driven-dissipative photonic lattices

Autor: Jamadi, O., Real, B., Sawicki, K., Hainaut, C., Gonzalez-Tudela, A., Pernet, N., Sagnes, I., Morassi, M., Lemaitre, A., Gratiet, L. Le, Harouri, A., Ravets, S., Bloch, J., Amo, A.

The engineering of localised modes in photonic structures is one of the main targets of modern photonics. An efficient strategy to design these modes is to use the interplay of constructive and destructive interference in periodic photonic lattices.

Externí odkaz: http://arxiv.org/abs/2112.07753

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Chiral emission induced by optical Zeeman effect in polariton micropillars

Autor: Real, B., Zambon, N. Carlon, St-Jean, P., Sagnes, I., Lemaître, A., Gratiet, L. Le, Harouri, A., Ravets, S., Bloch, J., Amo, A.

The low sensitivity of photons to external magnetic fields is one of the major challenges for the engineering of photonic lattices with broken time-reversal symmetry. Here we show that time-reversal symmetry can be broken for microcavity polaritons i

Externí odkaz: http://arxiv.org/abs/2107.11131

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Topological gap solitons in a 1D non-Hermitian lattice

Autor: Pernet, N., St-Jean, P., Solnyshkov, D. D., Malpuech, G., Zambon, N. Carlon, Real, B., Jamadi, O., Lemaître, A., Morassi, M., Gratiet, L. Le, Baptiste, T., Harouri, A., Sagnes, I., Amo, A., Ravets, S., Bloch, J.

Publikováno v: Nature Physics 18, 678 (2022)

Nonlinear topological photonics is an emerging field aiming at extending the fascinating properties of topological states to the realm where interactions between the system constituents cannot be neglected. Interactions can indeed trigger topological

Externí odkaz: http://arxiv.org/abs/2101.01038

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Semi-Dirac Transport and Anisotropic Localization in Polariton Honeycomb Lattices

Autor: Real, B., Jamadi, O., Milićević, M., Pernet, N., St-Jean, P., Ozawa, T., Montambaux, G., Sagnes, I., Lemaître, A., Gratiet, L. Le, Harouri, A., Ravets, S., Bloch, J., Amo, A.

Publikováno v: Phys. Rev. Lett. 125, 186601 (2020)

Compression dramatically changes the transport and localization properties of graphene. This is intimately related to the change of symmetry of the Dirac cone when the particle hopping is different along different directions of the lattice. In partic

Externí odkaz: http://arxiv.org/abs/2004.03478

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Measuring topological invariants in polaritonic graphene

Autor: St-Jean, P., Dauphin, A., Massignan, P., Real, B., Jamadi, O., Milićević, M., Lemaître, A., Harouri, A., Gratiet, L. Le, Sagnes, I., Ravets, S., Bloch, J., Amo, A.

Publikováno v: Phys. Rev. Lett. 126, 127403 (2021)

Topological materials rely on engineering global properties of their bulk energy bands called topological invariants. These invariants, usually defined over the entire Brillouin zone, are related to the existence of protected edge states. However, fo

Externí odkaz: http://arxiv.org/abs/2002.09528

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Spatial rogue waves in photorefractive SBN crystals

Autor: Hermann-Avigliano, C., Salinas, I. A., Rivas, D. A., Real, B., Mančić, A., Mejía-Cortés, C., Maluckov, A., Vicencio, R. A.

Publikováno v: Optics Letters Vol. 44, Issue 11, pp. 2807-2810 (2019)

We report on the excitation of large-amplitude waves, with a probability of around 1% of total peaks, on a photorefractive SBN crystal by using a simple experimental setup at room temperature. We excite the system using a narrow Gaussian beam and obs

Externí odkaz: http://arxiv.org/abs/1905.12054

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