Enhanced photon emission and absorption of single quantum dot in resonance with two modes in photonic crystal nanocavity

Yasutomo Ota, Masahiro Nomura, Naoto Kumagai, Katsuyuki Watanabe, Satomi Ishida, Satoshi Iwamoto, Yasuhiko Arakawa

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

We demonstrate simultaneous enhancement of photon emission and absorption of a single InGaAs self-assembled quantum dot (QD) in resonance with two modes in a photonic crystal nanocavity. The QD, whose ground and excited states are resonant, respectively, with the first and second lowest order cavity modes, is excited by cavity resonant excitation at the wavelength of the second order cavity mode and shows 180 times greater photon emission from the ground state than a bare QD. This large enhancement is attributed to a combination of Purcell effect, efficient photon extraction, and cavity resonant absorption enhancement.

Original languageEnglish
Article number183114
JournalApplied Physics Letters
Volume93
Issue number18
DOIs
Publication statusPublished - 2008
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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