Deep Subwavelength-Scale Light Focusing and Confinement in Nanohole-Structured Mesoscale Dielectric Spheres

doi:10.3390/nano9020186

	Deep Subwavelength-Scale Light Focusing and Confinement in Nanohole-Structured Mesoscale Dielectric Spheres
	Y.H.Cao; Z.Y.Liu; O.V.Minin; I.V.Minin
	2019
发表期刊	Nanomaterials
ISSN	2079-4991
卷号	9 期号:2 页码:7
摘要	One of the most captivating properties of dielectric mesoscale particles is their ability to form a sub-diffraction limited-field localization region, near their shadow surfaces. However, the transverse size of the field localization region of a dielectric mesoscale particle is usually larger than lambda/3. In this present paper, for the first time, we present numerical simulations to demonstrate that the size of the electromagnetic field that forms in the localized region of the dielectric mesoscale sphere can be significantly reduced by introducing a nanohole structure at its shadow surface, which improves the spatial resolution up to lambda/40 and beyond the solid immersion diffraction limit of lambda/2n. The proposed nanohole-structured microparticles can be made from common natural optical materials, such as glass, and are important for advancing the particle-lens-based super-resolution technologies, including sub-diffraction imaging, interferometry, surface fabrication, enhanced Raman scattering, nanoparticles synthesis, optical tweezer, etc.
关键词	nanohole,microsphere,subwavelength-scale light focusing,photonic nanojets,nanoparticles
DOI	10.3390/nano9020186
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收录类别	SCI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63470
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Y.H.Cao,Z.Y.Liu,O.V.Minin,et al. Deep Subwavelength-Scale Light Focusing and Confinement in Nanohole-Structured Mesoscale Dielectric Spheres[J]. Nanomaterials,2019,9(2):7.
APA	Y.H.Cao,Z.Y.Liu,O.V.Minin,&I.V.Minin.(2019).Deep Subwavelength-Scale Light Focusing and Confinement in Nanohole-Structured Mesoscale Dielectric Spheres.Nanomaterials,9(2),7.
MLA	Y.H.Cao,et al."Deep Subwavelength-Scale Light Focusing and Confinement in Nanohole-Structured Mesoscale Dielectric Spheres".Nanomaterials 9.2(2019):7.

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