| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Magnetic Field Induced Spectroscopy of 88Sr Atoms Probed with a 10 Hz Linewidth Laser |
| LIN Yi-Ge1,2**, WANG Qiang2,3, LI Ye2,3, LIN Bai-Ke2, WANG Shao-Kai2, MENG Fei2, ZHAO Yang2,3, CAO Jian-Ping2, ZANG Er-Jun2, LI Tian-Chu2, FANG Zhan-Jun2 |
1School of Opto-Electronics, Beijing Institute of Technology, Beijing 100081
2Time and Frequency Metrology Division, National Institute of Metrology, Beijing 100013
3Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084
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| Cite this article: |
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LIN Yi-Ge, WANG Qiang, LI Ye et al 2013 Chin. Phys. Lett. 30 014206 |
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Abstract We present our experiment on magnetic field induced spectroscopy of the 1S0–3P0 transition of 88Sr atoms with a 10 Hz linewidth laser. The 88Sr atoms are cooled by two stage laser cooling. After the second stage narrow line laser cooling, the temperature of the atoms is reduced to ～3 μK. The atoms are then loaded into an 813 nm one-dimensional optical lattice. A homemade 698 nm laser with 10 Hz linewidth and maximum intensity of more than 100 W/cm2 is used to probe the 88Sr atoms in the lattice. By means of a magnetic field of ～1 mT and a probe laser with 50 ms pulse and ～6 W/cm2 intensity, the Doppler free 88Sr 1S0–3P0 transition spectrum with a linewidth of 208 Hz is obtained.
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Received: 10 October 2012
Published: 04 March 2013
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| PACS: |
42.50.Gy
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(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
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42.62.Eh
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(Metrological applications; optical frequency synthesizers for precision spectroscopy)
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37.10.Jk
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(Atoms in optical lattices)
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32.70.Jz
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(Line shapes, widths, and shifts)
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