Polarization-resolved strong light–matter coupling in planar GaAs/AlGaAs waveguides

Shapochkin, P. Yu.; Lozhkin, Maksim S.; Solovev, I. A.; Lozhkina, Olga A.; P., Efimov, Yury; Eliseev, Sergey; Lovtcius, V. A.; Kozlov, G. G.; Pervishko, Anastasiia A.; Krizhanovskii, D. N.; Walker, P. M.; Shelykh, I. A.; Skolnick, M. S.; Kapitonov, Yu. V.

doi:10.1364/ol.43.004526

Cited by 12 publications

(7 citation statements)

References 26 publications

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“…We obtain values of 13.4 meV and 5.2 meV, respectively. As a matter of fact this is predicted by the selection rules for the coupling of the confined modes with the exciton dipole, which imply an Ω value around three times higher for the TE mode than for the TM mode, as it has already been observed in similar samples [29,30]. The figure also evidences an important difference in the wavevector β spreading between the TM and the TE modes.…”

Section: Resultssupporting

confidence: 68%

Electrically controlled waveguide polariton laser

Suárez-Forero,

Riminucci,

Ardizzone

et al. 2020

Preprint

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Semiconductor polariton systems offer a versatile solid state platform to study many-body physical effects such as lasing or superfluidity in out-of-equilibrium systems. They are also anticipated as a new platform for integrated optics: behaving as interacting photons, these mixed light-matter quasi-particles could be the cornerstone of a new technology for optoelectronic devices, implementing logic gates, switches and other functionalities. In this work we demonstrate an electrically controlled polariton laser, in a compact, easy-to-fabricate and integrable configuration, based on a semiconductor waveguide. Interestingly, we show that polariton lasing can be achieved in a system without a local minimum in the polariton energy-momentum dispersion. The surface cavity modes for the laser emission are obtained by adding couples of specifically designed diffraction gratings on top of the planar waveguide, forming an in-plane Fabry-Perot cavity. It is precisely thanks to the waveguide geometry, that we can apply a transverse electric field in order to finely tune the laser energy and quality factor of the cavity modes. Remarkably, we exploit the system sensitivity to the applied electric field to achieve an electrically switched source of coherent polaritons. The precise control that can be reached with the manipulation of the grating properties and of the electric field, provide strong advantages to this device in terms of miniaturization and integrability, two main features for the future development of coherent sources from polaritonic technologies.

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Section: Resultssupporting

confidence: 68%

Electrically controlled waveguide polariton laser

Suárez-Forero,

Riminucci,

Ardizzone

et al. 2020

Preprint

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“…Figure 1 b shows the energy dispersion of the zero-order polaritonic modes in absence of external fields. As reported in previous works [15,24], the geometry and polarization of the guided electromagnetic modes yield a Rabi splitting around 3 times higher for the Transverse Electric (TE) than for the Tranverse Magnetic (TM) mode. We obtain a value of the Rabi splitting Ω = 13.9 meV for the TE mode and Ω = 5.8 meV for the TM mode.…”

supporting

confidence: 64%

Demonstration of dipolar-induced enhancement of parametric effects in polariton waveguides

Suárez-Forero,

Riminucci,

Ardizzone

et al. 2020

Preprint

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“…In microcavities with a small exciton-photon detuning, the addition of spin-anisotropic polariton-polariton interactions to the present system opens up new possibilities, including spindependent Klein tunneling 20 , interaction-induced topological phase transitions 33 modification of the spin domains 34 . We also anticipate that in principle the gauge field realized in our system may be engineered in other platforms such as photonic crystals based on thick slab waveguides with small TE-TM splitting 35 or plasmonic lattices 36 . The study of the non-Abelian gauge fields acting on photon spin in topological lattices with special symmetries would also be an interesting research direction 37 .…”

Section: Horizontalmentioning

confidence: 99%