Singular behavior of the spectrum in the neighborhood of focus.
Singular behavior of the spectrum in the neighborhood of focus.
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DOI：
10.1364/josaa.19.001694
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发表时间：
2002-08
期刊：
影响因子：
--
通讯作者：
G. Gbur;T. Visser;E. Wolf
中科院分区：
文献类型：
--
作者：
G. Gbur;T. Visser;E. Wolf
In a recent paper [Phys. Rev. Lett. 88, 013901 (2002)] it was shown that when a convergent spatially coherent polychromatic wave is diffracted at an aperture, remarkable spectral changes take place on axis in the neighborhood of certain points near the geometrical focus. In particular, it was shown that the spectrum is red-shifted at some points, blueshifted at others, and split into two lines elsewhere. In the present paper we extend the analysis and show that similar changes take place in the focal plane, in the neighborhood of the dark rings of the Airy pattern.
