天文学进展2017，Vol.35Issue(3)：345-366,22.DOI:10.3969/j.issn.1000-8349.2017.03.05
主动型氢原子钟的研究进展
Progresses in Researches of Active Hydrogen Atomic Clock
摘要
Abstract
The active hydrogen atomic clock (H clock) based on hydrogen microwave amplifi-cation by stimulated emission of radiation (H maser) have excellent short-term and mid-term frequency stability. The atomic storage bulb is the key technology of H clock. The atomic ensemble interact with electromagnetic field in the storage bulb situated in the TE011 resonant cavity. The dynamical processes, the phase noise of H maser and H clock, and relaxations including storage time, spin-exchange collision, atoms collisions with wall and inhomogeneous magnetic field are briefly described. The new cavity auto-tuning method and double state selection method for improving the frequency stability are introduced. The technology im-provements such as vacuum system, ionization source are also introduced. Finally, some development prospects for H clock are proposed.关键词
原子钟/氢微波激射器/原子储存泡/弛豫/频率稳定度Key words
atomic clock/H maser/atom storage bulb/relaxation/frequency stability分类
机械制造引用本文复制引用
何克亮,张为群,林传富..主动型氢原子钟的研究进展[J].天文学进展,2017,35(3):345-366,22.基金项目
国家自然科学基金(U1331105) （U1331105）
