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Proceedings Paper

Ultra-narrow photonic nanojets formed by a micro/nanofiber array
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Paper Abstract

A photonic nanojet (PNJ) is a highly focused optical beam with a subwavelength waist on the shadow side of the dielectric microparticle. In this paper, we propose and numerically investigate the PNJ formed by a micro/nanofiber (MNF) array. Three-dimensional finite-difference time-domain (FDTD) simulations are conducted and demonstrate that an ultra-narrow photonic nanojet with a full-width at half maximum (FWHM) waist of 0.2λ can be obtained. Besides, key characteristic parameters of PNJ, including PNJ length, maximum intensity, and FWHM can be flexibly tuned by modifying the refractive index of the MNF, the diameter of the MNF, and the incident wavelength.

Paper Details

Date Published: 18 December 2019
PDF: 6 pages
Proc. SPIE 11336, AOPC 2019: Nanophotonics, 113360U (18 December 2019); doi: 10.1117/12.2548070
Show Author Affiliations
Jinying Chen, Quanzhou Normal Univ. (China)
Pinghui Wu, Quanzhou Normal Univ. (China)
Zhiying Huang, Quanzhou Normal Univ. (China)
Qinghua Zeng, Quanzhou Normal Univ. (China)
Hui Ye, Quanzhou Normal Univ. (China)
Qingsong Niu, Quanzhou Normal Univ. (China)
Kang Lin, 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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