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Title: Subwavelength superfocusing with a dipole-wave-reciprocal binary zone plate
Authors: Wang, Jun
Qin, Fei
Zhang, Dao Hua
Li, Dongdong
Wang, Yueke
Shen, Xiaonan
Yu, Ting
Teng, Jing Hua
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing
Issue Date: 2013
Source: Wang, J., Qin, F., Zhang, D. H., Li, D., Wang, Y., Shen, X., et al. (2013). Subwavelength superfocusing with a dipole-wave-reciprocal binary zone plate. Applied physics letters, 102(6).
Series/Report no.: Applied physics letters
Abstract: We propose an idea of using a convergent dipole wave at the aperture, radiated from a dipole at distance of z0, to produce a perfect focusing at z0. We verified this idea through simulation and experimental observation. It is demonstrated that the zone plate designed based on the idea can provide a subwavelength superfocusing by effectively bending the surface waves in a Fresnel region of 100 nm to a couple of wavelengths and is suitable for a situation where a superresolution at a micro working distance is essential.
ISSN: 00036951
DOI: 10.1063/1.4791581
Rights: © 2013 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at the following official DOI: One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
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