| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Frequency Stabilization Using Polarization Spectroscopy and Cr-He Hollow Cathode Discharge |
| YIN Cong1**, QIAN Jin1, ZHANG Xiao-Ping1, SHI Chun-Ying1, WANG Han-Ping1, HUANG Sheng-Ye2
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1Division of Metrology in Length and Precision Engineering, National Institute of Metrology, Beijing 100013
2China South Industry Academe, Beijing 100089
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| Cite this article: |
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YIN Cong, QIAN Jin, ZHANG Xiao-Ping et al 2011 Chin. Phys. Lett. 28 094204 |
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Abstract Polarization spectroscopy is used to lock a frequency-doubled Ti:Sapphire laser to the 425.5 nm 7S3→7P40 transition of 52Cr. A Cr−He hollow cathode discharge cell is designed and fabricated to produce Cr atom vapor instead of a high temperature cell. Without any modulation devices or lock-in amplifiers, a high signal-to-background level polarization spectroscopy signal is obtained. Moreover, a frequency fluctuation of ±295 kHz for more than one hour is achieved.
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| Keywords:
42.62.Fi
32.30.-r
52.80.Yr
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Received: 16 May 2011
Published: 30 August 2011
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