Improved Evaluation of BBR and Collisional Frequency Shifts of NIM-Sr2 with 7.2 × 10-18Total Uncertainty

Bing Kun Lu; Zhen Sun; Tao Yang; Yi Ge Lin; Qiang Wang; Ye Li; Fei Meng; Bai Ke Lin; Tian Chu Li; Zhan Jun Fang

doi:10.1088/0256-307X/39/8/080601

Improved Evaluation of BBR and Collisional Frequency Shifts of NIM-Sr2 with 7.2 × 10^-18Total Uncertainty

Bing Kun Lu, Zhen Sun, Tao Yang, Yi Ge Lin^*, Qiang Wang, Ye Li, Fei Meng, Bai Ke Lin, Tian Chu Li, Zhan Jun Fang^*

^*此作品的通讯作者

科研成果: 期刊稿件 › 文章 › 同行评审

14 引用（Scopus）

摘要

NIM-Sr2 optical lattice clock has been developed on the Changping campus of National Institute of Metrology (NIM). Considering the limitations in NIM-Sr1, several improved parts have been designed including a differential pumping stage in the vacuum system, a permanent magnet Zeeman slower, water-cooled anti-Helmholtz coils, an extended viewport for Zeeman slower, etc. A clock laser with a short-time stability better than 3 × 10-16 is realized based on a self-designed 30-cm-long ultra-low expansion cavity. The systematic frequency shift has been evaluated to an uncertainty of 7.2 × 10-18, with the uncertainty of BBR shift and the collisional frequency shift being an order of magnitude lower than the last evaluation of NIM-Sr1.

源语言	英语
文章编号	080601
期刊	Chinese Physics Letters
卷	39
期	8
DOI	https://doi.org/10.1088/0256-307X/39/8/080601
出版状态	已出版 - 1 7月 2022
已对外发布	是

访问文件

10.1088/0256-307X/39/8/080601

其它文件与链接

链接到 Scopus 的出版物

引用此

Lu, B. K., Sun, Z., Yang, T., Lin, Y. G., Wang, Q., Li, Y., Meng, F., Lin, B. K., Li, T. C., & Fang, Z. J. (2022). Improved Evaluation of BBR and Collisional Frequency Shifts of NIM-Sr2 with 7.2 × 10^-18Total Uncertainty. Chinese Physics Letters, 39(8), 文章 080601. https://doi.org/10.1088/0256-307X/39/8/080601

@article{faedc0c62f4f479d8228748baea9b9d6,

title = "Improved Evaluation of BBR and Collisional Frequency Shifts of NIM-Sr2 with 7.2 × 10-18Total Uncertainty",

abstract = "NIM-Sr2 optical lattice clock has been developed on the Changping campus of National Institute of Metrology (NIM). Considering the limitations in NIM-Sr1, several improved parts have been designed including a differential pumping stage in the vacuum system, a permanent magnet Zeeman slower, water-cooled anti-Helmholtz coils, an extended viewport for Zeeman slower, etc. A clock laser with a short-time stability better than 3 × 10-16 is realized based on a self-designed 30-cm-long ultra-low expansion cavity. The systematic frequency shift has been evaluated to an uncertainty of 7.2 × 10-18, with the uncertainty of BBR shift and the collisional frequency shift being an order of magnitude lower than the last evaluation of NIM-Sr1.",

author = "Lu, {Bing Kun} and Zhen Sun and Tao Yang and Lin, {Yi Ge} and Qiang Wang and Ye Li and Fei Meng and Lin, {Bai Ke} and Li, {Tian Chu} and Fang, {Zhan Jun}",

note = "Publisher Copyright: {\textcopyright} 2022 Chinese Physical Society and IOP Publishing Ltd.",

year = "2022",

month = jul,

day = "1",

doi = "10.1088/0256-307X/39/8/080601",

language = "English",

volume = "39",

journal = "Chinese Physics Letters",

issn = "0256-307X",

publisher = "IOP Publishing Ltd.",

number = "8",

}

TY - JOUR

T1 - Improved Evaluation of BBR and Collisional Frequency Shifts of NIM-Sr2 with 7.2 × 10-18Total Uncertainty

AU - Lu, Bing Kun

AU - Sun, Zhen

AU - Yang, Tao

AU - Lin, Yi Ge

AU - Wang, Qiang

AU - Li, Ye

AU - Meng, Fei

AU - Lin, Bai Ke

AU - Li, Tian Chu

AU - Fang, Zhan Jun

PY - 2022/7/1

Y1 - 2022/7/1

N2 - NIM-Sr2 optical lattice clock has been developed on the Changping campus of National Institute of Metrology (NIM). Considering the limitations in NIM-Sr1, several improved parts have been designed including a differential pumping stage in the vacuum system, a permanent magnet Zeeman slower, water-cooled anti-Helmholtz coils, an extended viewport for Zeeman slower, etc. A clock laser with a short-time stability better than 3 × 10-16 is realized based on a self-designed 30-cm-long ultra-low expansion cavity. The systematic frequency shift has been evaluated to an uncertainty of 7.2 × 10-18, with the uncertainty of BBR shift and the collisional frequency shift being an order of magnitude lower than the last evaluation of NIM-Sr1.

AB - NIM-Sr2 optical lattice clock has been developed on the Changping campus of National Institute of Metrology (NIM). Considering the limitations in NIM-Sr1, several improved parts have been designed including a differential pumping stage in the vacuum system, a permanent magnet Zeeman slower, water-cooled anti-Helmholtz coils, an extended viewport for Zeeman slower, etc. A clock laser with a short-time stability better than 3 × 10-16 is realized based on a self-designed 30-cm-long ultra-low expansion cavity. The systematic frequency shift has been evaluated to an uncertainty of 7.2 × 10-18, with the uncertainty of BBR shift and the collisional frequency shift being an order of magnitude lower than the last evaluation of NIM-Sr1.

UR - http://www.scopus.com/inward/record.url?scp=85135126671&partnerID=8YFLogxK

U2 - 10.1088/0256-307X/39/8/080601

DO - 10.1088/0256-307X/39/8/080601

M3 - Article

AN - SCOPUS:85135126671

SN - 0256-307X

VL - 39

JO - Chinese Physics Letters

JF - Chinese Physics Letters

IS - 8

M1 - 080601

ER -

Improved Evaluation of BBR and Collisional Frequency Shifts of NIM-Sr2 with 7.2 × 10-18Total Uncertainty

摘要

访问文件

其它文件与链接

指纹

引用此

Improved Evaluation of BBR and Collisional Frequency Shifts of NIM-Sr2 with 7.2 × 10^-18Total Uncertainty