Near-field properties of diffraction through a circular subwavelength-size aperture

doi:10.1088/1674-1056/21/6/064202

中国物理B ›› 2012, Vol. 21 ›› Issue (6): 64202-064202.doi: 10.1088/1674-1056/21/6/064202

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Near-field properties of diffraction through a circular subwavelength-size aperture

王正岭^{a b}, 周明^a, 高传玉^a, 张伟^a

a. School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China;
b. Department of Physics, Jiangsu University, Zhenjiang 212013, China

收稿日期:2011-11-14 修回日期:2011-12-05 出版日期:2012-05-01 发布日期:2012-05-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 50975128), the National Key Basic Research Program of China (Grant No. 2011CB013004), the Natural Science Foundation of Jiangsu Province, China (Grant No. BK2011462), the National Science Foundation for Postdoctoral Scientists of China (Grant No. 20100481093), and Jiangsu Provincial Planned Projects for Postdoctoral Research Funds, China (Grant No. 0902028C).

Near-field properties of diffraction through a circular subwavelength-size aperture

Wang Zheng-Ling(王正岭)^a)b)†, Zhou Ming(周明)^a)‡, Gao Chuan-Yu(高传玉)^a), and Zhang Wei(张伟)^a)

a. School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China;
b. Department of Physics, Jiangsu University, Zhenjiang 212013, China

Received:2011-11-14 Revised:2011-12-05 Online:2012-05-01 Published:2012-05-01
Contact: Wang Zheng-Ling, Zhou Ming E-mail:zlwang@ujs.edu.cn; zm2109@126.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 50975128), the National Key Basic Research Program of China (Grant No. 2011CB013004), the Natural Science Foundation of Jiangsu Province, China (Grant No. BK2011462), the National Science Foundation for Postdoctoral Scientists of China (Grant No. 20100481093), and Jiangsu Provincial Planned Projects for Postdoctoral Research Funds, China (Grant No. 0902028C).

摘要/Abstract

摘要： Analytical nonparaxial vectorial electric field expressions for both Gaussian beams and plane waves diffracted through a circular aperture are derived by using the vector plane angular spectrum method for the first time, which is suitable for the subwavelength aperture and the near-field region. The transverse properties of intensity distributions and their evolutions with the propagating distance, and the power transmission functions for diffracted fields containing the whole field, the evanescent field and the propagating field are investigated in detail, which is helpful for understanding the relationship between evanescent and propagating components in the near-field region and can be applied to apertured near-field scanning optical microscopy.

关键词: analytical expressions, diffraction, circular subwavelength aperture, near-field properties

Abstract: Analytical nonparaxial vectorial electric field expressions for both Gaussian beams and plane waves diffracted through a circular aperture are derived by using the vector plane angular spectrum method for the first time, which is suitable for the subwavelength aperture and the near-field region. The transverse properties of intensity distributions and their evolutions with the propagating distance, and the power transmission functions for diffracted fields containing the whole field, the evanescent field and the propagating field are investigated in detail, which is helpful for understanding the relationship between evanescent and propagating components in the near-field region and can be applied to apertured near-field scanning optical microscopy.

Key words: analytical expressions, diffraction, circular subwavelength aperture, near-field properties

中图分类号: (Diffraction and scattering)

42.25.Fx

42.25.Bs (Wave propagation, transmission and absorption) 42.25.-p (Wave optics)

王正岭, 周明, 高传玉, 张伟. Near-field properties of diffraction through a circular subwavelength-size aperture[J]. 中国物理B, 2012, 21(6): 64202-064202.

Wang Zheng-Ling(王正岭), Zhou Ming(周明), Gao Chuan-Yu(高传玉), and Zhang Wei(张伟) . Near-field properties of diffraction through a circular subwavelength-size aperture[J]. Chin. Phys. B, 2012, 21(6): 64202-064202.

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Near-field properties of diffraction through a circular subwavelength-size aperture

Near-field properties of diffraction through a circular subwavelength-size aperture

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