Large vacuum Rabi splitting between a single quantum dot and an H0 photonic crystal nanocavity
Strong light matter interactions between semiconductor quantum dots and optical micro/nanocavities are useful resources for developing quantum information processing devices and for exploring diverse quantum optical phenomena. In pursuit of better device performances and novel physics, it is desirab...
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Veröffentlicht in: | Applied physics letters 2018-02, Vol.112 (9) |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Strong light matter interactions between semiconductor quantum dots and optical
micro/nanocavities are useful resources for developing quantum information processing
devices and for exploring diverse quantum optical phenomena. In pursuit of better device
performances and novel physics, it is desirable to achieve a larger coupling constant
between the quantum dot and the cavity while keeping the high coherence of the coupled
system. In this letter, we report the observation of a large vacuum Rabi splitting of ∼328
μeV using a single InAs quantum dot embedded in a GaAs-based H0
photonic crystal nanocavity, which possesses a near-diffraction limited mode volume as
well as a high experimental Q factor of ∼52 000. The resulting figure of
merit of the strongly coupled systems, defined as a ratio of the coupling constant to the
cavity decay rate, reaches 6.4, which is the record high value for semiconductor
QD-nanocavity systems reported to date. |
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ISSN: | 0003-6951 1077-3118 |
DOI: | 10.1063/1.5016615 |