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

被引：8

作者：

Tajiri, T. ^{[1
,6
]}

Sakai, Y. ^{[2
]}

Kuruma, K. ^{[1
]}

Ji, S. M. ^{[1
]}

Kiyama, H. ^{[2
]}

Oiwa, A. ^{[2
,3
]}

Ritzmann, J. ^{[4
]}

Ludwig, A. ^{[4
]}

Wieck, A. D. ^{[4
]}

Ota, Y. ^{[5
]}

Arakawa, Y. ^{[5
]}

Iwamoto, S. ^{[1
,5
]}

机构：

[1] Univ Tokyo, Inst Ind Sci, Meguro Ku, 4-6-1 Komaba, Tokyo 1538505, Japan

[2] Osaka Univ, Inst Sci & Ind Res, 8-1 Mihogaoka, Ibaraki, Osaka 5670047, Japan

[3] Osaka Univ, Inst Open & Transdisciplinary Res Initiat, Quantum Informat & Quantum Biol Div, Osaka 5650871, Japan

[4] Ruhr Univ Bochum, Lehrstuhl Angew Festkorperphys Bochum, D-44780 Bochum, Germany

[5] Univ Tokyo, Inst Nano Quantum Informat Elect, Meguro Ku, 4-6-1 Komaba, Tokyo 1538505, Japan

[6] Univ Electrocommun, 1-5-1 Chofugaoka, Chofu, Tokyo 1828585, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2020年 / 59卷 / SG期

关键词：

SINGLE-ELECTRON; SPIN; ENTANGLEMENT;

D O I：

10.7567/1347-4065/ab5b62

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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. (C) 2020 The Japan Society of Applied Physics

引用

页数：6

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