Title :

Chiral emission induced by optical Zeeman effect in polariton micropillars

Author(s) :

Real, B. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Zambon, N. Carlon [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
St-Jean, P. [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Sagnes, I. [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Lemaître, A. [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Gratiet, L. Le [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Harouri, A. [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Ravets, S. [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Bloch, J. [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Amo, A. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]

Journal title :

Physical Review Research

Pages :

043161

Publisher :

American Physical Society

Publication date :

2021-12

HAL domain(s) :

Physique [physics]
Physique [physics]/Matière Condensée [cond-mat]/Systèmes mésoscopiques et effet Hall quantique [cond-mat.mes-hall]

English abstract : [en]

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 ...
Show more >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 in the absence of any external magnetic field thanks to polarization dependent polariton interactions. Circularly polarized excitation of carriers in a micropillar induces a Zeeman-like energy splitting between polaritons of opposite polarizations. In combination with optical spin-orbit coupling inherent to semiconductor microstructures, the interaction induced Zeeman splitting results in emission of vortical beams with a well-defined chirality. Our experimental findings can be extended to lattices of coupled micropillars opening the possibility of controling optically the topological properties of polariton Chern insulators.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523

Source :

Harvested from HAL