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Tunable doublet lens based on dielectric metasurface using phase-change material
Li, Xingyi1,2; Li, Siqi1; Wang, Guoxi1; Lei, Yufang1; Hong, Yunfan1; Zhang, Lingxuan1; Zeng, Chao1; Wang, Leiran1; Sun, Qibing1; Zhang, Wenfu1
Department瞬态光学研究室
2020-10-10
Source PublicationMODERN PHYSICS LETTERS B
ISSN0217-9849;1793-6640
Volume34Issue:28
Contribution Rank1
Abstract

Metasurfaces have recently emerged to realize flat optical components with various functions and providing potential capabilities in manufacturing active devices. In this paper, a doublet lens for mid-infrared wavelength with tunable focal length has been proposed. The designed metalens consists of two dielectric metalenses with different focal lengths patterned on a phase-change materials Ge2Sb1Te4. The doublet lens is proved to have above 13% change in the focal length with the crystalline states shifting of the Ge2Sb1Te4. And the designed doublet lens can be operated in mid-infrared region from 2.41 mu m to 2.60 mu m. In addition, chromatic calibration can be achieved by adjusting the crystalline phases of the Ge2Sb1Te4. This compatible metalens promises potential for a wide range of applications in MIR region such as multi-spectrum imaging, optical coupling system and micrography.

KeywordMetasurfaces phase-change materials lens
DOI10.1142/S0217984920503133
Indexed BySCI
Language英语
WOS IDWOS:000580598200011
PublisherWORLD SCIENTIFIC PUBL CO PTE LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/93763
Collection瞬态光学研究室
Corresponding AuthorLi, Xingyi
Affiliation1.Chinese Acad Sci, Xian Inst Opt & Precis Mech XIOPM, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Xingyi,Li, Siqi,Wang, Guoxi,et al. Tunable doublet lens based on dielectric metasurface using phase-change material[J]. MODERN PHYSICS LETTERS B,2020,34(28).
APA Li, Xingyi.,Li, Siqi.,Wang, Guoxi.,Lei, Yufang.,Hong, Yunfan.,...&Zhang, Wenfu.(2020).Tunable doublet lens based on dielectric metasurface using phase-change material.MODERN PHYSICS LETTERS B,34(28).
MLA Li, Xingyi,et al."Tunable doublet lens based on dielectric metasurface using phase-change material".MODERN PHYSICS LETTERS B 34.28(2020).
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