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Phase-locked light sources with low-phase noise for manipulating terahertz-separated metastable states in 40Ca+

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Abstract

We report the development of phase-locked light sources for manipulating terahertz-separated metastable states in 40Ca+. Two Ti:sapphire lasers with frequencies separated by 1.82 THz are phase-locked using an optical comb generator. The obtained phase noise is 49.8 mrad when the phase-locked loop is closed. Using the developed light sources, we excite Rabi oscillations between the terahertz-separated 32D3/2 and 32D5/2 states in 40Ca+. We discuss the phase noises of the light sources and their effect on excitation of Rabi oscillations.

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Authors and Affiliations

  1. Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan

    S. Haze, Y. Senokuchi, K. Toyoda & S. Urabe

  2. JST-CREST, 4-1-8 Honmachi, Kawaguchi, Saitama, 331-0012, Japan

    R. Yamazaki, K. Toyoda & S. Urabe

Authors
  1. S. Haze
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  2. Y. Senokuchi
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  3. R. Yamazaki
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  4. K. Toyoda
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  5. S. Urabe
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Correspondence to S. Haze.

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Haze, S., Senokuchi, Y., Yamazaki, R. et al. Phase-locked light sources with low-phase noise for manipulating terahertz-separated metastable states in 40Ca+ . Appl. Phys. B 101, 547–552 (2010). https://doi.org/10.1007/s00340-010-4036-4

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  • DOI: https://doi.org/10.1007/s00340-010-4036-4

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