Novel repumping on 3P0 →3D1 for Sr magneto-optical trap and Landé g factor measurement of 3D1

Shengnan Zhang; Preetam Ramchurn; Marco Menchetti; Qasim Ubaid; Jonathan Jones; Kai Bongs; Yeshpal Singh

doi:10.1088/1361-6455/abbe2c

Novel repumping on 3P0 →3D1 for Sr magneto-optical trap and Landé g factor measurement of 3D1

Shengnan Zhang, Preetam Ramchurn, Marco Menchetti, Qasim Ubaid, Jonathan Jones, Kai Bongs, Yeshpal Singh

Physics and Astronomy

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Abstract

We realize an experimental facility for cooling and trapping strontium (Sr) atoms and measure the Landé g factor of 3D1 of 88Sr. Thanks to a novel repumping scheme with the 3P2 → 3S1 and 3P0 → 3D1 combination and the permanent magnets based self-assembled Zeeman slower, the peak atom number in the continuously repumped blue magneto-optical trap is enhanced by a factor of 15 with respect to the non-repumping case, and reaches ~1 billion. Furthermore, using the resolved-sideband Zeeman spectroscopy, the Landé g factor of 3D1 is measured to be 0.4995(88) showing a good agreement with the theoretical value of 0.4988. The results will have an impact on various applications including atom laser, dipolar interactions, quantum information and precision measurements.

Original language	English
Article number	235301
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Volume	53
Issue number	23
DOIs	https://doi.org/10.1088/1361-6455/abbe2c
Publication status	Published - 23 Oct 2020

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title = "Novel repumping on 3P0 →3D1 for Sr magneto-optical trap and Land{\'e} g factor measurement of 3D1",

abstract = "We realize an experimental facility for cooling and trapping strontium (Sr) atoms and measure the Land{\'e} g factor of 3D1 of 88Sr. Thanks to a novel repumping scheme with the 3P2 → 3S1 and 3P0 → 3D1 combination and the permanent magnets based self-assembled Zeeman slower, the peak atom number in the continuously repumped blue magneto-optical trap is enhanced by a factor of 15 with respect to the non-repumping case, and reaches ~1 billion. Furthermore, using the resolved-sideband Zeeman spectroscopy, the Land{\'e} g factor of 3D1 is measured to be 0.4995(88) showing a good agreement with the theoretical value of 0.4988. The results will have an impact on various applications including atom laser, dipolar interactions, quantum information and precision measurements.",

author = "Shengnan Zhang and Preetam Ramchurn and Marco Menchetti and Qasim Ubaid and Jonathan Jones and Kai Bongs and Yeshpal Singh",

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T1 - Novel repumping on 3P0 →3D1 for Sr magneto-optical trap and Landé g factor measurement of 3D1

AU - Zhang, Shengnan

AU - Ramchurn, Preetam

AU - Menchetti, Marco

AU - Ubaid, Qasim

AU - Jones, Jonathan

AU - Bongs, Kai

AU - Singh, Yeshpal

PY - 2020/10/23

Y1 - 2020/10/23

N2 - We realize an experimental facility for cooling and trapping strontium (Sr) atoms and measure the Landé g factor of 3D1 of 88Sr. Thanks to a novel repumping scheme with the 3P2 → 3S1 and 3P0 → 3D1 combination and the permanent magnets based self-assembled Zeeman slower, the peak atom number in the continuously repumped blue magneto-optical trap is enhanced by a factor of 15 with respect to the non-repumping case, and reaches ~1 billion. Furthermore, using the resolved-sideband Zeeman spectroscopy, the Landé g factor of 3D1 is measured to be 0.4995(88) showing a good agreement with the theoretical value of 0.4988. The results will have an impact on various applications including atom laser, dipolar interactions, quantum information and precision measurements.

AB - We realize an experimental facility for cooling and trapping strontium (Sr) atoms and measure the Landé g factor of 3D1 of 88Sr. Thanks to a novel repumping scheme with the 3P2 → 3S1 and 3P0 → 3D1 combination and the permanent magnets based self-assembled Zeeman slower, the peak atom number in the continuously repumped blue magneto-optical trap is enhanced by a factor of 15 with respect to the non-repumping case, and reaches ~1 billion. Furthermore, using the resolved-sideband Zeeman spectroscopy, the Landé g factor of 3D1 is measured to be 0.4995(88) showing a good agreement with the theoretical value of 0.4988. The results will have an impact on various applications including atom laser, dipolar interactions, quantum information and precision measurements.

U2 - 10.1088/1361-6455/abbe2c

DO - 10.1088/1361-6455/abbe2c

M3 - Article

SN - 0953-4075

VL - 53

JO - Journal of Physics B: Atomic, Molecular and Optical Physics

JF - Journal of Physics B: Atomic, Molecular and Optical Physics

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M1 - 235301

ER -

Novel repumping on 3P0 →3D1 for Sr magneto-optical trap and Landé g factor measurement of 3D1

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