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Last name: ALLOING
First name: B
International audience
We report a polariton laser in a GaN ridge waveguide with a switching from mono to multi-mode laser operation with temperature. The study of the free spectral range between the modes first leads to the unambiguous proof that the polaritons are in a regime of strong coupling. Above 150K, during the passage to the multi-mode laser, a flattening...
Exciton-photon coupling in a waveguide geometry is attracting more and more interest in the field of polaritonics. Waveguide polaritons are obtained when the exciton and the guided mode of a photonic waveguide are brought in the strong coupling regime, in strong analogy with cavity polaritons in Fabry-Perot resonators. One of the first...
We experimentally demonstrate the difference between a ridge polariton laser and a conventional edge-emitting ridge laser operating under electron-hole population inversion. The horizontal laser cavities are 20-60µm long GaN etched ridge structures with vertical Bragg refectors. We investigatethe laser threshold under optical pumping and assess...
To highlight the specific character of polariton lasers, namely the absence of reciprocity between the processes leading to gain and loss, we present here the operation of a CW polariton laser in a ridge geometry with distributed Bragg reflectors (DBRs) forming the cavities. We explore the laser threshold under optical pumping, and we...
International audience