Vacuum Rabi spectra of a single quantum emitter

Yasutomo Ota, Ryuichi Ohta, Naoto Kumagai, Satoshi Iwamoto, Yasuhiko Arakawa

研究成果: Article査読

27 被引用数 (Scopus)

抄録

We report the observation of the vacuum Rabi splitting of a single quantum emitter by measuring its direct spontaneous emission into free space. We use a semiconductor quantum dot inside a photonic crystal nanocavity, in conjunction with an appropriate cavity design and filtering with a polarizer and an aperture, enabling the extraction of the inherently weak emitter's signal. The emitter's vacuum Rabi spectra exhibit clear differences from those measured by detecting the cavity photon leakage. Moreover, we observe an asymmetric vacuum Rabi spectrum induced by interference between the emitter and cavity detection channels. Our observations lay the groundwork for accessing various cavity quantum electrodynamics phenomena that manifest themselves only in the emitter's direct spontaneous emission.

本文言語English
論文番号143603
ジャーナルPhysical review letters
114
14
DOI
出版ステータスPublished - 2015 4月 8
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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