Electrically controlled waveguide polariton laser

Abstract

Exciton-polaritons are mixed light-matter particles offering a versatile solid state platform to study many-body physical effects. 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 global 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 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 controlled population of coherent polaritons. The precise control that can be reached with the manipulation of the grating properties and of the electric field provides strong advantages to this device in terms of miniaturization and integrability, two main features for the future development of coherent sources from polaritonic technologies.

arXiv comment11 pages, 5 figures. Supplementary: 6 pages, 7 figures

References in corpus (12)

• Observation of Superfluidity of Polaritons in Semiconductor Microcavities
• Quantised Vortices in an Exciton-Polariton Fluid
• All-optical polariton transistor
• Polariton laser using single micropillar GaAs-GaAlAs semiconductor cavities
• Room-temperature superfluidity in a polariton condensate
• Optical bistability in semiconductor microcavities in the nondegenerate parametric oscillation regime: analogy with the optical parametric oscillator
• Ultra-low threshold polariton lasing in photonic crystal cavities
• Realization of an all optical exciton-polariton router
• Edge-emitting polariton laser and amplifier based on a ZnO waveguide
• Lineshape of harmonic generation on metal nanoparticles and metallic Photonic Crystal slabs
• Electrically controlled mutual interactions of flying waveguide dipolaritons
• Fully guided electrically-controlled exciton polaritons

Cited by in corpus (8)

• Reconfigurable quantum fluid molecules of bound states in the continuum
• Demonstration of dipolar-induced enhancement of parametric effects in polariton waveguides
• Fabrication of Nanostructured GaAs/AlGaAs Waveguide for Low-Density Polariton Condensation from a Bound State in the Continuum
• Ridge polariton laser: different from a semiconductor edge-emitting laser
• Electrically controlled photonic circuits of field-induced dipolaritons with huge nonlinearities
• Exciton-polaritons in GaAsbased slab waveguide photonic crystals
• Adiabatic theory of one-dimensional curved polariton waveguides
• Time-resolved dynamics of GaN waveguide polaritons