摘要
现在人们正发展和评估新型的光频标的特点和应用.光频标由于其参考频率在1015的量级,比微波频率高出4—5个数量级,在相同的谱线线宽条件下,光频标的精度与微波频标相比具有很大的优越性,可望成为新的频率基准,有可能在微重力环境中得到应用.
New optical frequency standards are being developed, and their features and applications evaluated. Since the reference frequencies of optical frequency standards are at the 1015 Hz level, which is four to five orders of magnitudes higher than current microwave standards, future optical standards have obvious advantages. These will probably become the new reference standards, and will have potential applications in weak gravitation environments as well.
出处
《物理》
CAS
北大核心
2008年第10期720-728,共9页
Physics
基金
国家重点基础研究发展计划资助项目(批准号:2005CB724500)
国家自然基金委员会重大项目(批准号:60490280)
关键词
囚禁离子
光频标
字间应用
trap ion
optical frequency standards
space applications
