Fabrication and optical characterization of photonic crystal nanocavities with electrodes for gate-defined quantum dots

T. Tajiri, Y. Sakai, K. Kuruma, S. M. Ji, H. Kiyama, A. Oiwa, J. Ritzmann, A. Ludwig, A. D. Wieck, Y. Ota, Y. Arakawa, S. Iwamoto

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Among various solid-state systems, gate-defined quantum dots (QD) with high scalability and controllability for single electron spin qubits are promising candidates to realize quantum spin-photon interface. The efficiency of the spin-photon interface is expected to be significantly enhanced by optical coupling of gate-defined QDs with photonic crystal (PhC) nanocavities. As the first step towards this optical coupling, we designed and experimentally demonstrated a PhC nanocavity with electrodes. The electrodes, which can form a single QD, were introduced on the top surfaces of two-dimensional PhC nanocavities with a position accuracy of a few tens of nanometers. Despite the electrodes, a resonant mode was confirmed for the PhC nanocavities through micro-photoluminescence spectroscopy. This work marks a crucial step towards optical coupling between gate-defined QDs and PhC nanocavities.

本文言語English
論文番号SGGI05
ジャーナルJapanese journal of applied physics
59
SG
DOI
出版ステータスPublished - 2020 4月 1
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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