国家自然科学基金(11074011)

作品数：9被引量：12H指数：3
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相关机构：北京大学中国计量科学研究院更多>>
相关期刊：《Chinese Optics Letters》《Science Bulletin》《科学通报》《Chinese Physics B》更多>>
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主动光钟的研究进展被引量：1
《科学通报》2015年第21期1963-1975,共13页庄伟 陈景标 
国家自然科学基金(10874009,11074011);国家自然科学基金重大项目(91436210);国际科技合作项目(2010DFR10900)资助
主动光钟是一种在腔反馈条件下以工作于原子跃迁谱线的光频受激辐射直接作为量子频率标准的新型原子光钟,有望将传统光钟稳定度提高2个量级,从而推动光钟的技术进步,应用更趋广泛.本文简述了光钟的发展历程及目前的关键技术瓶颈;介绍了...
关键词：主动光钟 坏腔激光 四能级主动光钟 原子滤光器 法拉第光钟 法拉第激光 
Narrower atomic filter at 422.7 nm based on thermal Ca beam
《Chinese Science Bulletin》2014年第28期3543-3548,共6页Zhichao Xu Xiaobo Xue Duo Pan Xiaogang Zhang Wei Zhuang Jingbiao Chen 
supported by the National Natural Science Foundation of China(10874009 and 11074011)
So far, the only Ca magneto-optic atomic filters reported are based on a heated Ca cell, and the transmission spectrum obtained is double-peaked with 3 GHz effective passband limited by Doppler broadening. A magneto-o...
关键词：原子束 过滤器 纳米 多普勒加宽 钙 传输效率 原子滤波器 多普勒宽度 
Ultranarrow bandwidth nonlinear Faraday optical filter at rubidium D_2 transition被引量：1
《Chinese Optics Letters》2014年第10期60-63,共4页庄伟 洪叶龙 高智文 祝传文 陈景标 
supported by the National Natural Science Foundation of China(Nos.10874009 and 11074011);the National 863 Program of China
We demonstrate a narrowband optical filter which operates on the 52S1/2 to 52P3/2 transition at 780 nm in rubidium vapor based on optical-pumping-induced dichroism combined with Faraday anomalous dispersion effects. I...
关键词：Optical filters Optical pumping RUBIDIUM 
Global evolution of an analyzer angle on the Faraday anomalous dispersion optical filter at 1529 nm
《Chinese Science Bulletin》2013年第36期4582-4587,共6页TAO ZhiMing WANG YanFei HONG YeLong WANG DongYing ZHUANG Wei CHEN JingBiao 
supported by the National Natural Science Foundation of China(10874009 and 11074011)
In order to realize laser frequency stabilization,the global evolution of an analyzer angle on the electrodeless-discharge-vaporlamp-based excited-state Faraday anomalous dispersion optical filter(LESFADOF)with a sing...
关键词：法拉第反常色散 光学滤波器 演进 激光稳频 无电极放电 无线电频率 频率稳定 激发态 
Active optical clock based on four-level quantum system被引量：6
《Chinese Science Bulletin》2013年第18期2033-2038,共6页ZHANG TongGang WANG YanFei ZANG XiaoRun ZHUANG Wei CHEN JingBiao 
supported by the National Natural Science Foundation of China (10874009 and 11074011)
Active optical clock,a new conception of atomic clock,has been proposed recently.In this work,we propose a scheme of active optical clock based on four-level quantum system.The final accuracy and stability of two-leve...
关键词：主动光学 量子系统 四能级 时钟 三能级系统 激光增益 多普勒频移 粒子数反转 
Distribution of populations in excited states of electrodeless discharge lamp of Rb atoms被引量：1
《Chinese Science Bulletin》2013年第16期1876-1881,共6页TAO ZhiMing WANG YanFei HONG YeLong WANG DongYing ZHANG ShengNan ZHUANG Wei CHEN JingBiao 
supported by the National Natural Science Foundation of China (10874009 and 11074011)
The intensity of fluorescence spectral lines of Rb atoms in the region of 350-1110nm is measured in eletrodeless discharge lamp. The population ratio between the excited states is calculated according to the spontaneo...
关键词：原子激发态 无极灯 铷原子 种群分布 人口密度 无极放电灯 原子滤光器 概率计算 
Realization of population inversion between 7S_(1/2) and 6P_(3/2) levels of cesium for four-level active optical clock被引量：6
《Science China(Physics,Mechanics & Astronomy)》2013年第6期1107-1110,共4页WANG YanFei WANG DongYing ZHANG TongGang HONG YeLong ZHANG ShengNan TAO ZhiMing XIE XiaoPeng CHEN JingBiao 
supported by the National Natural Science Foundation of China (Grant Nos. 10874009 and 11074011)
We demonstrate experimentally the population inversion between 7S1/2 and 6P3/2 levels of cesium in thermal cesium cell with a 455.5 nm pumping laser.We calculate the relative population probabilities at each level the...
关键词：active optical clock four-level system population inversion 
The near-infrared spectra and distribution of excited states of electrodeless discharge rubidium vapour lamps被引量：1
《Chinese Physics B》2012年第3期171-175,共5页孙钦青 缪新育 盛荣武 陈景标 
Project supported by the National Natural Science Foundation of China (Grant Nos.10874009 and 11074011)
The population ratio between the excited states of rubidium in the electrodeless discharge rubidium vapour lamp is calculated according to the near-infrared spectra in the region of 780-1550 nm. By using a 1529 nm las...
关键词：electrodeless discharge rubidium vapour lamp near-infrared spectra POPULATION 
Multi-threshold second-order phase transition in laser被引量：4
《Chinese Science Bulletin》2011年第35期3812-3816,共5页ZHUANG Wei YU DeShui LIU ZhiWen CHEN JingBiao 
supported by the National Natural Science Foundation of China(10874009 and 11074011)
We present a theory of the multi-threshold second-order phase transition,and experimentally demonstrate the multi-threshold secondorder phase transition phenomenon.With carefully selected parameters,in an external cav...
关键词：二阶相变 多阈值 激光相变 激光器系统 二极管 实验 外腔 
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