Marginal phase correction of truncated Bessel beams

被引：0

作者：

Sedukhin, Audrey G. ^{[1
]}

机构：

[1] Russian Academy of Sciences, Inst. of Automation and Electrometry, Prospekt Akademika Koptyuga 1, Novosibirsk 630090, Russia

来源：

Journal of the Optical Society of America A: Optics and Image Science, and Vision | 2000年 / 17卷 / 06期

关键词：

Approximation theory - Light transmission - Optical filters - Oscillations;

D O I：

10.1364/josaa.17.001059

中图分类号：

学科分类号：

摘要：

Approximate analytic expressions are obtained for evaluating the axial intensity and the central-lobe diameter of J0 Bessel beams transmitted through a finite-aperture phase filter. A reasonable quality factor governing the axial-intensity behavior of a phase-undistoried truncated Bessel beam is found to be the inverse square root of the Fresnel number defined, for a given aperture, from the axial point of geometrical shadow. Additional drastic reduction of axial-intensity oscillations is accomplished by using marginal phase correction of the beam instead of the well-known amplitude apodization. A procedure for analytically calculating an optimal monotonic slowly varying correction phase function is described. © 2000 Optical Society of America.

引用

页码：1059 / 1066