Manipulation of dynamic nuclear spin polarization in single quantum dots by photonic environment engineering

C. F. Fong, Y. Ota, S. Iwamoto, Y. Arakawa

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Optically induced dynamic nuclear spin polarization (DNP) in a semiconductor quantum dot (QD) requires many cycles of excitation of spin polarized carriers and carrier recombination. As such, the radiative lifetime of the exciton containing the electron becomes one of the limiting factors of DNP. In principle, changing the radiative lifetime of the exciton will affect DNP and thus the nuclear spin polarization. Here, we demonstrate the manipulation of DNP in single QDs through the engineering of the photonic environment using two-dimensional photonic crystals. We find that the achievable degree of nuclear spin polarization can be controlled through the modification of exciton radiative lifetime. Our results show the promise of achieving a higher degree of nuclear spin polarization via photonic environment engineering, with implications on spin-based quantum information processing.

本文言語English
論文番号245423
ジャーナルPhysical Review B
95
24
DOI
出版ステータスPublished - 2017 6月 21
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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