Laser oscillation in a strongly coupled single-quantum-dot–nanocavity system

By M. Nomura, N. Kumagai, S. Iwamoto, Y. Ota, Yasuhiko Arakawa. 2009

315 citations recorded by the source corpus.

Laser oscillations have now been observed in a solid-state system composed of an InAs quantum dot strongly coupled to the optical modes of a GaAs photonic-crystal cavity. Signs of lasing in the system are observed as the optical pump power is increased but before the strong coupling is lost. The strong coupling of photons and matter1 in semiconductor nanocavities has been a test bed for cavity quantum electrodynamics2,3 (QED). Vacuum Rabi oscillation4,5,6,7,8—the coherent exchange of a single quantum between a single quantum dot (SQD) and an optical cavity—and highly efficient cavity-QED lasers9,10,11,12,13,14,15,16,17,18,19 have both been reported. The coexistence of vacuum Rabi oscillation and laser oscillation seems to be contradictory, but it has recently been predicted theoretically that the strong-coupling effect could be sustained in laser oscillation20. Here, we demonstrate the onset of lasing in the strong-coupling regime in an SQD–cavity system. A high-quality semiconductor optical nanocavity and strong SQD–field coupling enabled the onset of lasing while maintaining the fragile coherent exchange of quanta.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/42322c7dc9775bfc37354100aa2236c9a0267b94

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In Atomic and Molecular Physics, and Optics

In Electrical and Electronic Engineering

Citations in the corpus

Exciton–polariton light–semiconductor coupling effects (2011, background): “Improving the ratio of the quantum vacuum Rabi splitting to the coupled system linewidth would, for example, enable more definitive demonstrations of single-QD lasin”
Ultra-low Threshold electrically pumped quantum dot photonic crystal nanocavity laser (2011, background): “The low-power dissipation of these lasers makes them very promising for applications in optical interconnects and high-speed communications, as well as for fundamental studies of the properties of electrically pumped thresholdless lasers and lasers with single-emitter gai”
Attojoule Optoelectronics for Low-Energy Information Processing and Communications (2016, background): “, [90]–[92]) can also be compared34 with the projections in Table II.”