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- Centre National de la Recherche ScientifiqueFR339 papers
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10 papers · 1 filter
Annihilation of exceptional points from different Dirac valleys in a 2D photonic system
M. Król, I. Septembre, P. Oliwa +13
Topological physics relies on the existence of Hamiltonian's eigenstate singularities carrying a topological charge, such as quantum vortices, Dirac points, Weyl points and -- in n…
Controllable structuring of exciton-polariton condensates in cylindrical pillar microcavities
V. K. Kalevich, M. M. Afanasiev, V. A. Lukoshkin +7
We observe condensation of exciton polaritons in quantum states composed of concentric rings when exciting cylindrical pillar GaAs/AlGaAs microcavities non-resonantly by a focused…
Voltage control of the spin-dependent interaction constants of Dipolaritons and its application to Optical Parametric Oscillator
A. V. Nalitov, D. D. Solnyshkov, N. A. Gippius +1
Dipolariton is a voltage controlled mixture of direct and indirect excitons in asymmetric double quantum wells coupled by resonant carrier tunneling, and a microcavity photon. We c…
Optical amplifier based on guided polaritons in GaN and ZnO
D. D. Solnyshkov, H. Terças, G. Malpuech
We propose a scheme of an optical amplifier based on GaN and ZnO waveguides operating in the regime of strong coupling between photonic modes and excitonic resonances. Amplificatio…
Ignition and formation dynamics of a polariton condensate on a semiconductor microcavity pillar
C. Antón, D. Solnyshkov, G. Tosi +6
We present an experimental study on the ignition and decay of a polariton optical parametric oscillator (OPO) in a semiconductor microcavity pillar. The combination of a continuous…
Patterned silicon substrates: a common platform for room temperature GaN and ZnO polariton lasers
J. Zuniga-Perez, E. Mallet, R. Hahe +14
A new platform for fabricating polariton lasers operating at room temperature is introduced: nitride-based distributed Bragg reflectors epitaxially grown on patterned silicon subst…