Chinese Journal of Magnetic Resonance

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Induction of Hydrogen Ramsey Interference with Pulsed Microwave

  

  1. 1. Shanghai Astronomical Observatory, Shanghai 200030, China; 
    2.  University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2012-10-29 Revised:2012-12-13 Online:2013-09-05 Published:2013-09-05
  • About author:*Corresponding author: Chen Peng-fei, Tel: 021-34775628,E-mail:chenpengfei@shao.ac.cn.
  • Supported by:

    国家自然科学基金资助项目(11003037).

Abstract:

The feasibility of inducing Ramsey interference by pulsed microwave in hydrogen maser was studied. The key parameters were theoretically determined, and a pulsed microwave signal generator was designed. The Ramsey interference of hydrogen atoms was induced successfully on the physical package of a traditional passive hydrogen maser. Line width of the hydrogen atomic transition was reduced from 3.0 Hz to 1.2 Hz. It is expected that the frequency stability of passive hydrogen maser could be improved by using the design.

Key words: hydrogen maser, Ramsey interference, pulsed microwave, line width

CLC Number: