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arXiv 0709.3818quant-phphysics.optics
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自旋诱导angular momentum开关

Spin-induced angular momentum switching

Gabriel F. Calvo, Antonio Picón

摘要:

当光通过光学非均匀和各向异性介质时,光的空间分布可以根据其输入偏振状态进行修改。一个完整的分析,这个过程的基础上,近轴近似,我们展示了如何利用它来产生自旋控制的变化,在图案化的空间变化光轴相位板中传播的光束的轨道角动量。我们还发现了一个新的效果。在通过相位板的光路变化时,角动量变化的强调制的发展。

英文摘要:

When light is transmitted through optically inhomogeneous and anisotropic media the spatial distribution of light can be modified according to its input polarization state. A complete analysis of this process, based on the paraxial approximation, is presented, and we show how it can be exploited to produce a spin-controlled-change in the orbital angular momentum of light beams propagating in patterned space-variant-optical-axis phase plates. We also unveil a new effect. The development of a strong modulation in the angular momentum change upon variation of the optical path through the phase plates.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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