Diffractive Elements for Zero-Order Bessel Beam Generation With Application in the Terahertz Reflection Imaging
Novel diffractive elements are presented to produce zero-order Bessel beams in the terahertz (THz) band. First, diffractive elements are designed as phase plates to change the direction of the incident Gaussian beam. Then, they are fabricated by the emerging three-dimensional printing technology. La...
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8579113/ |
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| author | Liting Niu Kejia Wang Yongqiang Yang Qiao Wu Xi Ye Zhengang Yang Jinsong Liu Hengyong Yu |
| author_facet | Liting Niu Kejia Wang Yongqiang Yang Qiao Wu Xi Ye Zhengang Yang Jinsong Liu Hengyong Yu |
| author_sort | Liting Niu |
| collection | DOAJ |
| description | Novel diffractive elements are presented to produce zero-order Bessel beams in the terahertz (THz) band. First, diffractive elements are designed as phase plates to change the direction of the incident Gaussian beam. Then, they are fabricated by the emerging three-dimensional printing technology. Last, zero-order Bessel beams are generated by the diffractive elements at 0.3 THz. To verify the feasibility of this approach, the generated zero-order Bessel beams are monitored and compared with the ones generated by the axicons. The comparison confirms that the diffractive elements can produce Bessel beam effectively and efficiently. In addition, the diffractive elements are applied to introduce zero-order Bessel beam to a THz reflection imaging system. A resolution test phantom is imaged by the THz reflection imaging system with zero-order Bessel beam and a conventional THz reflection imaging system. The results indicate that the THz reflection imaging system with Bessel beam offers a significantly extended depth of field and high anti-interference capability. |
| format | Article |
| id | doaj-art-a61b4e5f53764ca1a8ca69e017324a55 |
| institution | Matheson Library |
| issn | 1943-0655 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-a61b4e5f53764ca1a8ca69e017324a552025-07-01T23:43:39ZengIEEEIEEE Photonics Journal1943-06552019-01-0111111210.1109/JPHOT.2018.28871398579113Diffractive Elements for Zero-Order Bessel Beam Generation With Application in the Terahertz Reflection ImagingLiting Niu0https://orcid.org/0000-0001-5788-7421Kejia Wang1Yongqiang Yang2Qiao Wu3Xi Ye4Zhengang Yang5Jinsong Liu6https://orcid.org/0000-0003-1948-3893Hengyong Yu7https://orcid.org/0000-0002-5852-0813Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, ChinaWuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, ChinaWuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, ChinaWuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, ChinaWuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, ChinaSchool of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, ChinaWuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, ChinaDepartment of Electrical and Computer Engineering, University of Massachusetts Lowell, Lowell, MA, USANovel diffractive elements are presented to produce zero-order Bessel beams in the terahertz (THz) band. First, diffractive elements are designed as phase plates to change the direction of the incident Gaussian beam. Then, they are fabricated by the emerging three-dimensional printing technology. Last, zero-order Bessel beams are generated by the diffractive elements at 0.3 THz. To verify the feasibility of this approach, the generated zero-order Bessel beams are monitored and compared with the ones generated by the axicons. The comparison confirms that the diffractive elements can produce Bessel beam effectively and efficiently. In addition, the diffractive elements are applied to introduce zero-order Bessel beam to a THz reflection imaging system. A resolution test phantom is imaged by the THz reflection imaging system with zero-order Bessel beam and a conventional THz reflection imaging system. The results indicate that the THz reflection imaging system with Bessel beam offers a significantly extended depth of field and high anti-interference capability.https://ieeexplore.ieee.org/document/8579113/Diffractive elementsTHz reflection imagingzero-order Bessel beam. |
| spellingShingle | Liting Niu Kejia Wang Yongqiang Yang Qiao Wu Xi Ye Zhengang Yang Jinsong Liu Hengyong Yu Diffractive Elements for Zero-Order Bessel Beam Generation With Application in the Terahertz Reflection Imaging IEEE Photonics Journal Diffractive elements THz reflection imaging zero-order Bessel beam. |
| title | Diffractive Elements for Zero-Order Bessel Beam Generation With Application in the Terahertz Reflection Imaging |
| title_full | Diffractive Elements for Zero-Order Bessel Beam Generation With Application in the Terahertz Reflection Imaging |
| title_fullStr | Diffractive Elements for Zero-Order Bessel Beam Generation With Application in the Terahertz Reflection Imaging |
| title_full_unstemmed | Diffractive Elements for Zero-Order Bessel Beam Generation With Application in the Terahertz Reflection Imaging |
| title_short | Diffractive Elements for Zero-Order Bessel Beam Generation With Application in the Terahertz Reflection Imaging |
| title_sort | diffractive elements for zero order bessel beam generation with application in the terahertz reflection imaging |
| topic | Diffractive elements THz reflection imaging zero-order Bessel beam. |
| url | https://ieeexplore.ieee.org/document/8579113/ |
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