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Proceedings Paper

Generation of a hollow-tube array with prescribed characteristics
Author(s): Lei Jia; Yanzhong Yu; Yuting Zeng
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Paper Abstract

Based on the principle of antenna pattern multiplication as the product of the element pattern and array factor, a simple and flexible method to generate hollow-tube arrays with predetermined properties is proposed. This approach can be easily realized in a 4Pi focusing system by reversing the field eradiated from the collinear antenna array whose elements are isotropic magnetic current sources. All hollow tubes produced by this method are pure azimuthally polarized fields whose intensity distribution is nearly unchanged along the entire depth of focus. Numerical results show that the appearance and position of the focusing field only depend on the element pattern and array factor, respectively. These peculiar focusing field arrays are suitable for multi-particle trapping and manipulation, materials processing, and optical lithography.

Paper Details

Date Published: 18 December 2019
PDF: 7 pages
Proc. SPIE 11336, AOPC 2019: Nanophotonics, 1133609 (18 December 2019); doi: 10.1117/12.2543316
Show Author Affiliations
Lei Jia, Quanzhou Normal Univ. (China)
Yanzhong Yu, Quanzhou Normal Univ. (China)
Yuting Zeng, Quanzhou Normal Univ. (China)

Published in SPIE Proceedings Vol. 11336:
AOPC 2019: Nanophotonics
Zhiping Zhou; Xiao-Cong Yuan; Daoxin Dai, Editor(s)

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