Strong coupling between a photonic crystal nanobeam cavity and a single quantum dot

Ryuichi Ohta, Yasutomo Ota, Masahiro Nomura, Naoto Kumagai, Satomi Ishida, Satoshi Iwamoto, Yasuhiko Arakawa

Research output: Contribution to journalArticlepeer-review

74 Citations (Scopus)

Abstract

We demonstrated the strong coupling between a one-dimensional photonic crystal nanobeam cavity and a single quantum dot (QD). Thanks to a high quality factor (∼25 000) with small mode volume [0.38× (n/λ) 3] of the nanobeam cavity, an anticrossing behavior with a vacuum Rabi splitting of 226 μeV was observed. The ratio of the QD-cavity coupling strength to the cavity decay rate, which is a figure of merit of quantum optical applications, is estimated to 2.1. This is the highest value among any QD-based cavity quantum electrodynamics systems reported so far.

Original languageEnglish
Article number173104
JournalApplied Physics Letters
Volume98
Issue number17
DOIs
Publication statusPublished - 2011 Apr 25
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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