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Accueil > La Recherche > Axes & Equipes > Physique de l’Exciton, du Photon & du Spin > Optique des états collectifs et des spins (OECS) > Etats collectifs dans les semiconducteurs > NEWAVE project : waveguide polariton lasers
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The Newave project has already led to the following achievements :
- The demonstration of the first GaN-based ridge polariton laser with etched Fabry-Perot cavities, leading to a detailed comparison with conventional edge-emitting lasers Phys. Rev. Applied 18, 044029 (2022)
- The design and validation of two topological laser devices :
- a 2D photonic crystal slab based on a TiO2-capped ZnO waveguide, designed for lasing on propagating interface states Physical Review B 107 (15), pp.155304 (2023)
- a 1D photonic crystal slab based on a TiO2-capped GaN waveguide, designed for lasing on a Bound-in-Continuum state Phys. Rev. B 109, 205302 (2024)
- The demonstration of a mode-locked waveguide polariton laser operating up to 300K Optica 11, 967 (2024)
- Focus in the Photoniques p15 (July 2024), Société Française d’Optique
Figure : Ridge waveguide laser device with a GaN-based polaritonic active layer, ended with two distributed Bragg reflectors (SEM image). The laser spectrum (green) presents a specific envelope associated to the mode-locking operation, i.e. the formation of solitonic temporal pulses in the cavity, as shown in the numerical simulation of the polariton laser dynamics (bottom). Credits CNRS CRHEA, C2N, IP, L2C
And more results and details discussed in the Publications section
