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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
ISSN0146-9592
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
DOI10.1364/ol.43.004292
收录类别SCI ; EI
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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
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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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