The progress of strontium optical clock at NIM

Shao Kai Wang; Qiang Wang; Bai Ke Lin; Ye Li; Yi Ge Lin; Min Ming Wang; Yang Zhao; Jian Ping Cao; Er Jun Zang; Tian Chu Li; Zhan Jun Fang

doi:10.1109/EFTF.2010.6533714

The progress of strontium optical clock at NIM

Shao Kai Wang, Qiang Wang, Bai Ke Lin, Ye Li, Yi Ge Lin, Min Ming Wang, Yang Zhao, Jian Ping Cao, Er Jun Zang, Tian Chu Li, Zhan Jun Fang

National Institute of Metrology China

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We report the experimental realization of ⁸⁸Sr magneto-optical trap (MOT) operating at the wavelength of 461 nm and 689nm. The blue MOT is loaded via a 32 cm long spin-flip type Zeeman slower which enhances the MOT population by a factor of 44. We have trapped 1.6×10⁸ 88Sr atoms with the use of 679nm and 707nm repumping laser. The ⁸⁸Sr cloud has a temperature of about 2.3 mK, measured by recording the time evolution of the absorption signal. The 689nm laser used in our experiment has a line width of about 200Hz. To optimize the transfer efficiency, the laser spectrum is broadened by frequency modulation technique to about 2 MHz. The transfer efficiency from blue MOT to red MOT is about 20%.

Original language	English
Title of host publication	EFTF 2010 - 24th European Frequency and Time Forum
DOIs	https://doi.org/10.1109/EFTF.2010.6533714
Publication status	Published - 2010
Externally published	Yes
Event	24th European Frequency and Time Forum, EFTF 2010 - Noordwijk, Netherlands Duration: 13 Apr 2010 → 16 Apr 2010

Publication series

Name	EFTF 2010 - 24th European Frequency and Time Forum

Conference

Conference	24th European Frequency and Time Forum, EFTF 2010
Country/Territory	Netherlands
City	Noordwijk
Period	13/04/10 → 16/04/10

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10.1109/EFTF.2010.6533714

Cite this

@inproceedings{3cd4d8cbfa464766bb315c549c4c75f6,

title = "The progress of strontium optical clock at NIM",

abstract = "We report the experimental realization of 88Sr magneto-optical trap (MOT) operating at the wavelength of 461 nm and 689nm. The blue MOT is loaded via a 32 cm long spin-flip type Zeeman slower which enhances the MOT population by a factor of 44. We have trapped 1.6×108 88Sr atoms with the use of 679nm and 707nm repumping laser. The 88Sr cloud has a temperature of about 2.3 mK, measured by recording the time evolution of the absorption signal. The 689nm laser used in our experiment has a line width of about 200Hz. To optimize the transfer efficiency, the laser spectrum is broadened by frequency modulation technique to about 2 MHz. The transfer efficiency from blue MOT to red MOT is about 20%.",

author = "Wang, {Shao Kai} and Qiang Wang and Lin, {Bai Ke} and Ye Li and Lin, {Yi Ge} and Wang, {Min Ming} and Yang Zhao and Cao, {Jian Ping} and Zang, {Er Jun} and Li, {Tian Chu} and Fang, {Zhan Jun}",

year = "2010",

doi = "10.1109/EFTF.2010.6533714",

language = "English",

isbn = "9781467359702",

series = "EFTF 2010 - 24th European Frequency and Time Forum",

booktitle = "EFTF 2010 - 24th European Frequency and Time Forum",

note = "24th European Frequency and Time Forum, EFTF 2010 ; Conference date: 13-04-2010 Through 16-04-2010",

}

Wang, SK, Wang, Q, Lin, BK, Li, Y, Lin, YG, Wang, MM, Zhao, Y, Cao, JP, Zang, EJ, Li, TC & Fang, ZJ 2010, The progress of strontium optical clock at NIM. in EFTF 2010 - 24th European Frequency and Time Forum., 6533714, EFTF 2010 - 24th European Frequency and Time Forum, 24th European Frequency and Time Forum, EFTF 2010, Noordwijk, Netherlands, 13/04/10. https://doi.org/10.1109/EFTF.2010.6533714

TY - GEN

T1 - The progress of strontium optical clock at NIM

AU - Wang, Shao Kai

AU - Wang, Qiang

AU - Lin, Bai Ke

AU - Li, Ye

AU - Lin, Yi Ge

AU - Wang, Min Ming

AU - Zhao, Yang

AU - Cao, Jian Ping

AU - Zang, Er Jun

AU - Li, Tian Chu

AU - Fang, Zhan Jun

PY - 2010

Y1 - 2010

N2 - We report the experimental realization of 88Sr magneto-optical trap (MOT) operating at the wavelength of 461 nm and 689nm. The blue MOT is loaded via a 32 cm long spin-flip type Zeeman slower which enhances the MOT population by a factor of 44. We have trapped 1.6×108 88Sr atoms with the use of 679nm and 707nm repumping laser. The 88Sr cloud has a temperature of about 2.3 mK, measured by recording the time evolution of the absorption signal. The 689nm laser used in our experiment has a line width of about 200Hz. To optimize the transfer efficiency, the laser spectrum is broadened by frequency modulation technique to about 2 MHz. The transfer efficiency from blue MOT to red MOT is about 20%.

AB - We report the experimental realization of 88Sr magneto-optical trap (MOT) operating at the wavelength of 461 nm and 689nm. The blue MOT is loaded via a 32 cm long spin-flip type Zeeman slower which enhances the MOT population by a factor of 44. We have trapped 1.6×108 88Sr atoms with the use of 679nm and 707nm repumping laser. The 88Sr cloud has a temperature of about 2.3 mK, measured by recording the time evolution of the absorption signal. The 689nm laser used in our experiment has a line width of about 200Hz. To optimize the transfer efficiency, the laser spectrum is broadened by frequency modulation technique to about 2 MHz. The transfer efficiency from blue MOT to red MOT is about 20%.

UR - http://www.scopus.com/inward/record.url?scp=84881152115&partnerID=8YFLogxK

U2 - 10.1109/EFTF.2010.6533714

DO - 10.1109/EFTF.2010.6533714

M3 - Conference contribution

AN - SCOPUS:84881152115

SN - 9781467359702

T3 - EFTF 2010 - 24th European Frequency and Time Forum

BT - EFTF 2010 - 24th European Frequency and Time Forum

T2 - 24th European Frequency and Time Forum, EFTF 2010

Y2 - 13 April 2010 through 16 April 2010

ER -

The progress of strontium optical clock at NIM

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