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

Kumagai, N ; Arakawa, Y ; Nomura, M ; Ota, Y ; Iwamoto, S

Nature physics, 2010-04, Vol.6 (4), p.279-283 [Periódico revisado por pares]

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Título:
Laser oscillation in a strongly coupled single-quantum-dot-nanocavity system
Autor: Kumagai, N ; Arakawa, Y ; Nomura, M ; Ota, Y ; Iwamoto, S
Assuntos: Coherence ; Lasers ; Lasing ; Nanocomposites ; Nanomaterials ; Nanostructure ; Oscillations ; Oscillators ; Quantum dots ; Semiconductors
É parte de: Nature physics, 2010-04, Vol.6 (4), p.279-283
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: The strong coupling of photons and matter in semiconductor nanocavities has been a test bed for cavity quantum electrodynamics (QED). Vacuum Rabi oscillation-the coherent exchange of a single quantum between a single quantum dot (SQD) and an optical cavity-and highly efficient cavity-QED lasers 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 oscillation. 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.
Editor: London: Nature Publishing Group
Idioma: Inglês

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