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Novel Bilayer Micropyramid Structure Photonic Nanojet for Enhancing a Focused Optical Field.

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Title: Novel Bilayer Micropyramid Structure Photonic Nanojet for Enhancing a Focused Optical Field.
Authors: Ge, Shaobo1 (AUTHOR) geshaobo@126.com, Liu, Weiguo1 (AUTHOR) j.zhang@xatu.edu.cn, Zhang, Jin1 (AUTHOR) huangyuetian@xatu.edu.cn, Huang, Yuetian1 (AUTHOR) xiyingxue@163.com, Xi, Yingxue1 (AUTHOR) pfyang@xatu.edu.cn, Yang, Pengfei1 (AUTHOR) xuepingsun@xatu.edu.cn, Sun, Xueping1 (AUTHOR) lishijie@xatu.edu.cn, Li, Shijie1 (AUTHOR) dabinlin@xatu.edu.cn, Lin, Dabin1 (AUTHOR) zsemail@126.com, Zhou, Shun1 (AUTHOR) zyc_xatu@126.com, Zhu, Yechuan1 (AUTHOR), Li, Wenli2,3 (AUTHOR) Wenlili_nwpu@163.com, Yu, Yiting2,3 (AUTHOR) yyt@nwpu.edu.cn
Source: Nanomaterials (2079-4991). Aug2021, Vol. 11 Issue 8, p2034. 1p.
Subjects: Diamond turning, Nanoimprint lithography, Optical measurements, Thin films, Mechanical properties of condensed matter
Abstract: In this paper, synthetically using refraction, diffraction, and interference effects to achieve free manipulation of the focused optical field, we firstly present a photonic nanojet (PNJ) generated by a micropyramid, which is combined with multilayer thin films. The theory of total internal reflection (TIR) was creatively used to design the base angle of the micropyramid, and the size parameters and material properties of the microstructure were deduced via the expected optical field distribution. The as-designed bilayer micropyramid array was fabricated by using the single-point diamond turning (SPDT) technique, nanoimprint lithography (NIL), and proportional inductively coupled plasma (ICP) etching. After the investigation, the results of optical field measurement were highly consistent with those of the numerical simulation, and they were both within the theoretical calculation range. The bilayer micropyramid array PNJ enhanced the interference effect of incident and scattered fields; thus, the intensity of the focused light field reached 33.8-times that of the initial light, and the range of the focused light field was extended to 10.08 λ. Moreover, the full width at half maximum (FWHM) of the focal spot achieved was 0.6 λ , which was close to the diffraction limit. [ABSTRACT FROM AUTHOR]
Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Novel Bilayer Micropyramid Structure Photonic Nanojet for Enhancing a Focused Optical Field.
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  Data: <searchLink fieldCode="AR" term="%22Ge%2C+Shaobo%22">Ge, Shaobo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> geshaobo@126.com</i><br /><searchLink fieldCode="AR" term="%22Liu%2C+Weiguo%22">Liu, Weiguo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> j.zhang@xatu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Jin%22">Zhang, Jin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> huangyuetian@xatu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Huang%2C+Yuetian%22">Huang, Yuetian</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> xiyingxue@163.com</i><br /><searchLink fieldCode="AR" term="%22Xi%2C+Yingxue%22">Xi, Yingxue</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> pfyang@xatu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yang%2C+Pengfei%22">Yang, Pengfei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> xuepingsun@xatu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Sun%2C+Xueping%22">Sun, Xueping</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> lishijie@xatu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Shijie%22">Li, Shijie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> dabinlin@xatu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Lin%2C+Dabin%22">Lin, Dabin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zsemail@126.com</i><br /><searchLink fieldCode="AR" term="%22Zhou%2C+Shun%22">Zhou, Shun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zyc_xatu@126.com</i><br /><searchLink fieldCode="AR" term="%22Zhu%2C+Yechuan%22">Zhu, Yechuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Wenli%22">Li, Wenli</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<i> Wenlili_nwpu@163.com</i><br /><searchLink fieldCode="AR" term="%22Yu%2C+Yiting%22">Yu, Yiting</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<i> yyt@nwpu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Aug2021, Vol. 11 Issue 8, p2034. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Diamond+turning%22">Diamond turning</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoimprint+lithography%22">Nanoimprint lithography</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+measurements%22">Optical measurements</searchLink><br /><searchLink fieldCode="DE" term="%22Thin+films%22">Thin films</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+properties+of+condensed+matter%22">Mechanical properties of condensed matter</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this paper, synthetically using refraction, diffraction, and interference effects to achieve free manipulation of the focused optical field, we firstly present a photonic nanojet (PNJ) generated by a micropyramid, which is combined with multilayer thin films. The theory of total internal reflection (TIR) was creatively used to design the base angle of the micropyramid, and the size parameters and material properties of the microstructure were deduced via the expected optical field distribution. The as-designed bilayer micropyramid array was fabricated by using the single-point diamond turning (SPDT) technique, nanoimprint lithography (NIL), and proportional inductively coupled plasma (ICP) etching. After the investigation, the results of optical field measurement were highly consistent with those of the numerical simulation, and they were both within the theoretical calculation range. The bilayer micropyramid array PNJ enhanced the interference effect of incident and scattered fields; thus, the intensity of the focused light field reached 33.8-times that of the initial light, and the range of the focused light field was extended to 10.08 λ. Moreover, the full width at half maximum (FWHM) of the focal spot achieved was 0.6 λ , which was close to the diffraction limit. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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    Identifiers:
      – Type: doi
        Value: 10.3390/nano11082034
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: 2034
    Subjects:
      – SubjectFull: Diamond turning
        Type: general
      – SubjectFull: Nanoimprint lithography
        Type: general
      – SubjectFull: Optical measurements
        Type: general
      – SubjectFull: Thin films
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      – SubjectFull: Mechanical properties of condensed matter
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      – TitleFull: Novel Bilayer Micropyramid Structure Photonic Nanojet for Enhancing a Focused Optical Field.
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              M: 08
              Text: Aug2021
              Type: published
              Y: 2021
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