排序方式: 共有65条查询结果,搜索用时 15 毫秒
41.
激光冷却和捕陷中性原子① 总被引:3,自引:0,他引:3
深入地论述了激光冷却和捕陷原子研究的意义,系统地介绍了激光冷却和捕陷中性原子研究的历史发展、物理机制及其实验实现方法,并重点介绍了激光冷却和中性原子捕陷的两个重要应用--原子波激射和原子喷泉. 相似文献
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2013年12月20日联合国第六十八届会议决定将2015年设定为光和光基技术国际年,简称2015国际光年.本文围绕国际光年举办周年纪念的光科学历史上的一系列里程碑式的重要成就,在国际光年之际对光学千年的发展进行回顾.文中除尽可能全面地列出光学发展道路上的重要事件外,还力图从物理学的视角给光学一个概貌式的观察.本文包括3个部分:1.国际光年周年纪念的千年中的光学重要成就;2.光学的现代发展和光子学;3.光学的技术应用. 相似文献
43.
The decoupling theory is employed to analyze the multiplicative colored noise in a single mode laser system. Steady state intensity distribution function is derived when colored noise is included in the laser system. The first-order-like phase transition driven by multiplicative colored noise is investigated and compared with the case of multiplicative white noise. It is shown that the noise correlation time can affect the parameter plane of the first-order-like phase transition. The steady state intensity distributions in a laser system is changed greatly with noise correlation time τ. 相似文献
44.
噪声之间的耦合对一维激光场的影响 总被引:5,自引:2,他引:3
本文从理论上对加性噪声和倍增噪声之间有耦合作用的一维激光模型进行了分析,求出定态时激光强度分布函数的解析形式.同噪声之间不存在耦合的激光模型相比较,噪声之间的耦合增强了激光强度的涨落. 相似文献
45.
The phenomena of diversity-induced resonance in a coupled bistable system are investigated numerically and analytically when two different characteristic time delays are considered, i.e., the feedback time delay and the coupling time delay. By applying the mean-field approximation, the theoretical analysis of the spectral amplification factor is derived. It is shown that both of the time delays can induce periodic resonance. The feedback time delay can induce a damping oscillation in resonance at each multiple of the driving period. The feedback strength can reduce the resonance. While there exists an optimal value of the coupling strength at which the resonance can reach its maximum. 相似文献
46.
HE Ying ZHU Shiqun LING Yinsheng 《Chinese Journal of Lasers》2002,11(2):99-104
The decoupling theory is employed to analyze the multiplicative colored noise in a single mode laser system. Steady state intensity distribution function is derived when colored noise is included in the laser system. The first-order-like phase transition driven by multiplicative colored noise is investigated and compared with the case of multiplicative white noise. It is shown that the noise correlation time can affect the parameter plane of the first-order-like phase transition. The steady state intensity distributions in a laser system is changed greatly with noise correlation time τ. 相似文献
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原子激射器:相干原子束发生器 总被引:6,自引:0,他引:6
扼要介绍了原子激射器的原理、理论模型和首次实验报道,比较了原子激射器和光激射器的相似与不同,并评述了有关研究的前景和可能应用 相似文献
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在简单介绍分子荧光产生过程的基础上,系统介绍了新的光弹性涂层方法------发光光弹性涂层法的基本原理、涂层结构、系统组成及实验方法.由于新方法采用了气雾剂技术, 并通过在光弹性涂层中添加荧光染料,使新方法与传统的光弹性涂层方法相比, 具有如下优点: (1)更简单、快捷,特别是对于有复杂几何形状的构件; (2)只会引起较小的基底加强效应;(3)能提供更高的空间分辨率; (4)省去了条纹计数和位相去包裹的过程,简化了后续的数据处理过程; (5)发光涂层的发射光是漫射光,使得对曲面进行测量时有较高的相对强度.最后指出了新方法今后的研究方向及其在诸如产品设计流程中与有限元分析相结合等方面的广阔应用前景. 相似文献