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Experimental Study on Double Resonance Optical Pumping Spectroscopy in a Ladder-Type System of ~(87)Rb Atoms 下载免费PDF全文
Double resonance optical pumping spectroscopy has an outstanding advantage of high signal-to-noise ratio, thus having potential applications in precision measurement. With the counter propagated 780 nm and 776 nm laser beams acting on a rubidium vapor cell, the high resolution spectrum of 5S_(1/2)-5P_(3/2)-5D_(5/2) ladder-type transition of ~(87)Rb atoms is obtained by monitoring the population of the 5S_(1/2) ground state. The dependence of the spectroscopy lineshape on the probe and coupling fields are comprehensively studied in theory and experiment.This research is helpful for measurement of fundamental physical constants by high resolution spectroscopy. 相似文献
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本文实验研究了德国Holoeye Photonics AG公司生产的反射型电寻址液晶空间光调制器LCR1080的振幅和相位调制特性。在传统的振幅调制测量方法中引入最佳起偏角的测定,利用直接测量法获得了该空间光调制器精确的振幅调制特性曲线。采用双缝干涉法对空间光调制器的相位调制特性进行了测量,有效地克服了泰曼-格林干涉等方法受环境因素影响较大的缺点。通过改变加载到空间光调制器图像的灰度值,获取其相位延迟与灰度值的非线性关系。这些研究对基于液晶空间光调制器的光信息处理、自适应光学等研究奠定了良好的实验基础。 相似文献
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In this paper the generation of four-wave mixing (FWM) signal using a
noncycling transition of caesium atoms is investigated when the pumping laser
is locked to the transition $6{\rm S}_{1/2}F=4\to6{\rm P}_{3/2}F'=4$, and
meanwhile the probe frequency is scanned across the $6{\rm S}_{1/2}F=4
\to6{\rm P}_{3/2}$ transition. The efficiency of the four-wave mixing signal
as a function of the intensity of the pumping beams and the detuning of the
pumping beams is also studied. In order to increase the detection
efficiency, a repumping laser which is resonant with $6{\rm S}_{1/2}
F=3\to 6{\rm P}_{3/2}F'=4$ transition is used. A theoretical model is also
introduced, and the theoretical results are in qualitative agreement with
experimental ones. 相似文献
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文章用缀饰原子研究电磁感应透明,为分析探测光强度的破坏性干涉提供了一个清晰的物理图象,用这种方法可更乘法地研究驱动场失谐对电磁感应透明的影响。 相似文献
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超冷分子的产生对于量子信息、分子物理和分子化学具有重要的意义。本文通过介绍超冷分子的研究进展,主要分析了光缔合产生超冷分子的特点与物理机制,详细介绍了光缔合产生冷分子过程中的光谱测量方法。 相似文献
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