Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Side-lobes-controlled photonic nanojet with a horizontal graded-index microcylinder | |
Xing, H. M.; Zhou, W. C.; Wu, Y. H. | |
2018 | |
发表期刊 | Optics Letters
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ISSN | 0146-9592 |
卷号 | 43期号:17页码:4292-4295 |
摘要 | A photonic nanojet generated by the transparent dielectric microparticle (microsphere or microcylinder) is a subwavelength focused beam. The properties of the photonic nanojet have been modified by changing the refractive index and structure of the micropaticles. In this Letter, a super-narrow photonic nanojet with a full width at half-maximum waist of approximately 116.6 nm (lambda/4.3, with 500 nm excitation wavelength) is obtained by a horizontal graded-index microcylinder, which is divided by multilayers parallel to the direction of light propagation. The method for side lobes controlling by the waves' superposition from the modified graded refractive index and that of the center layer is proposed and discussed. Also, a structure with the composition of different height plates approaching the desired circular section is suggested for decreasing the difficulties in fabrication, and generates a similar photonic nanojet. (C) 2018 Optical Society of America |
关键词 | Optics |
DOI | 10.1364/ol.43.004292 |
收录类别 | SCI ; EI |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/61148 |
专题 | 中国科学院长春光学精密机械与物理研究所 |
推荐引用方式 GB/T 7714 | Xing, H. M.,Zhou, W. C.,Wu, Y. H.. Side-lobes-controlled photonic nanojet with a horizontal graded-index microcylinder[J]. Optics Letters,2018,43(17):4292-4295. |
APA | Xing, H. M.,Zhou, W. C.,&Wu, Y. H..(2018).Side-lobes-controlled photonic nanojet with a horizontal graded-index microcylinder.Optics Letters,43(17),4292-4295. |
MLA | Xing, H. M.,et al."Side-lobes-controlled photonic nanojet with a horizontal graded-index microcylinder".Optics Letters 43.17(2018):4292-4295. |
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