Spontaneous two-photon emission from a single quantum dot

Yasutomo Ota, Satoshi Iwamoto, Naoto Kumagai, Yasuhiko Arakawa

研究成果: Article査読

106 被引用数 (Scopus)

抄録

Spontaneous two-photon emission from a solid-state single quantum emitter is observed. We investigated photoluminescence from the neutral biexciton in a single semiconductor quantum dot coupled with a high Q photonic crystal nanocavity. When the cavity is resonant to the half energy of the biexciton, the strong vacuum field in the cavity inspires the biexciton to simultaneously emit two photons into the mode, resulting in clear emission enhancement of the mode. Meanwhile, the suppression of other single photon emission from the biexciton was observed, as the two-photon emission process becomes faster than the others at the resonance.

本文言語English
論文番号233602
ジャーナルPhysical review letters
107
23
DOI
出版ステータスPublished - 2011 11月 30
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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