Minimal focal spot obtained by focusing circularly polarized light

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-06-01 DOI:10.18287/2412-6179-co-1247

S. Stafeev, V. D. Zaitcev, V. Kotlyar

引用次数: 1

Abstract

In this paper, using the Richards-Wolf equations, we analyze focusing circularly polarized light with flat diffractive lenses. It is shown that as the numerical aperture of the lens increases, the size of the focal spot first decreases and then begins to grow. The minimum focal spot is observed at NA=0.96 (FWHM=0.55λ). With a further increase in the numerical aperture of the lens, the growth of the longitudinal component leads to an increase in the size of the focal spot. When the flat diffractive lens is replaced by an aplanatic lens, the size of the focal spot decreases monotonically as the numerical aperture of the lens increases.

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通过聚焦圆偏振光获得的最小焦斑

本文利用Richards-Wolf方程，分析了平面衍射透镜对焦圆偏振光的问题。结果表明，随着透镜数值孔径的增大，焦斑尺寸先减小后增大。最小焦斑在光亮度=0.96 (FWHM=0.55λ)处观测到。随着透镜数值孔径的进一步增大，纵向分量的增大导致焦斑尺寸的增大。用消光透镜代替平面衍射透镜时，焦斑的大小随着透镜数值孔径的增大而单调减小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.