Stark Tuning of Telecom Single-Photon Emitters Based on a Single Er3+
作者机构：CAS Key Laboratory of Quantum Information University of Science and Technology of China CAS Center for Excellence in Quantum Information and Quantum PhysicsUniversity of Science and Technology of China Hefei National Laboratory University of Science and Technology of China
出 版 物：《Chinese Physics Letters》 (中国物理快报(英文版))
年 卷 期：2023年第40卷第7期
页 面：4-8页
核心收录：
学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学]
基 金：supported by the National Key R&D Program of China (Grant No. 2017YFA0304100) the Innovation Program for Quantum Science and Technology (Grant No. 2021ZD0301200) the National Natural Science Foundation of China (Grant Nos. 12222411 and 11821404) partially carried out at the USTC Center for Micro and Nanoscale Research and Fabrication the support from the Youth Innovation Promotion Association CAS
主 题：Photons
摘 要：The implementation of scalable quantum networks requires photons at the telecom band and long-lived spin coherence. The single Er3+in solid-state hosts is an important candidate that fulfills these critical requirements simultaneously. However, to entangle distant Er3+ions through photonic connections, the emission frequency of individual Er3+in solid-state matrix must be the same, which is challenging because the emission frequency of Er3+depends on its local environment. Herein, we propose and experimentally demonstrate the Stark tuning of the emission frequency of a single Er3+in a Y2SiO5crystal by employing electrodes interfaced with a silicon photonic crystal cavity. We obtain a Stark shift of 182.9±0.8 MHz, which is approximately 27 times of the optical emission linewidth, demonstrating promising applications in tuning the emission frequency of independent Er3+into the same spectral channels. Our results provide a useful solution for construction of scalable quantum networks based on single Er3+and a universal tool for tuning emission of individual rare-earth ions.
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