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arXiv physics/0506120physics.optics
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贝塞尔光束传输:能量局域化和速度

Bessel beam propagation: Energy localization and velocity

D. Mugnai, I. Mochi

摘要:

本文用矢量法分析了贝塞尔光束(或贝塞尔X波)的传播。电场和磁场是通过考虑能够产生这种标量场的实际情况而获得的。具体地说,我们分析了由于在金属屏幕上的线性偏振平面波冲击的环形孔径的字段。在此基础上,在远场近似下,我们可以得到关于能流的传播和能量的速度的信息。

英文摘要:

The propagation of a Bessel beam (or Bessel-X wave) is analyzed on the basis of a vectorial treatment. The electric and magnetic fields are obtained by considering a realistic situation able to generate that kind of scalar field. Specifically, we analyze the field due to a ring-shaped aperture over a metallic screen on which a linearly polarized plane wave impinges. On this basis, and in the far field approximation, we can obtain information about the propagation of energy flux and the velocity of the energy.

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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