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Sub-wavelength focusing based on all-dielectric polarization-independent metalens
Zhao, Wei1,2; Li, Xingyi1,3; Li, Siqi1,3; Ge, Zhiqiang1,3; Liu, Mulong1,3; Li, Zhongyu1,3; Du, Shujian1,3
Department瞬态光学技术国家重点实验室
2018-11-20
Source PublicationINTERNATIONAL JOURNAL OF MODERN PHYSICS B
ISSN0217-9792;1793-6578
Volume32Issue:29
Contribution Rank1
Abstract

We have proposed an all-dielectric polarization-independent metalens, which can be used for sub-wavelength focusing. The phase discontinuity of transmission light is produced by varying the diameter of the nanopillar. In this way, the incident light can be focused into sub-wavelength spot. Besides, finite-difference time-domain results show that near diffraction limit focusing is realized for the wavelength from 580 nm to 750 nm, which means the proposed metalens possesses a broad operation bandwidth. This all-dielectric metalens features polarization independent and broad bandwidth, and thus promises great potential for the applications of nanolithography, dense storage and biophotonics.

KeywordLenses Metamaterials Polarization
DOI10.1142/S0217979218503216
Indexed BySCI
Language英语
WOS IDWOS:000451225000004
PublisherWORLD SCIENTIFIC PUBL CO PTE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/30742
Collection瞬态光学技术国家重点实验室
Corresponding AuthorLi, Xingyi
Affiliation1.Chinese Acad Sci, XIOPM, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China
2.Shaanxi Normal Univ, Coll Phys & Informat Technol, Xian 710119, Shanxi, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Wei,Li, Xingyi,Li, Siqi,et al. Sub-wavelength focusing based on all-dielectric polarization-independent metalens[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B,2018,32(29).
APA Zhao, Wei.,Li, Xingyi.,Li, Siqi.,Ge, Zhiqiang.,Liu, Mulong.,...&Du, Shujian.(2018).Sub-wavelength focusing based on all-dielectric polarization-independent metalens.INTERNATIONAL JOURNAL OF MODERN PHYSICS B,32(29).
MLA Zhao, Wei,et al."Sub-wavelength focusing based on all-dielectric polarization-independent metalens".INTERNATIONAL JOURNAL OF MODERN PHYSICS B 32.29(2018).
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