Near-Field Periodic Subwavelength Holey Metallic Plate for Far-Field Superresolution Focusing
Far-field focusing with superresolution aided by a proposed metallic plate is investigated in this paper. The proposed near-field structure can be employed to distinguish point-like sources with subwavelength distance and enhance the field strength based on the spoof surface plasmon polaritons theor...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2017-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/7829357/ |
| _version_ | 1818457960647491584 |
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| author | Xiao-Hua Wang Min Hu Bing-Zhong Wang Gang Zheng Peng Chen |
| author_facet | Xiao-Hua Wang Min Hu Bing-Zhong Wang Gang Zheng Peng Chen |
| author_sort | Xiao-Hua Wang |
| collection | DOAJ |
| description | Far-field focusing with superresolution aided by a proposed metallic plate is investigated in this paper. The proposed near-field structure can be employed to distinguish point-like sources with subwavelength distance and enhance the field strength based on the spoof surface plasmon polaritons theory, and by the simulations of near- and far-field spectrums, it can be found that some near-field evanescent waves carried the superresolution information can be converted to propagation waves and propagate to the far-field. Therefore, with the help of time reversal imaging process, the far-field superresolution focusing is validated by the experiments in laboratory environment. A resolution of ~λ/13 is achieved from the last results, which is well beyond the diffraction limit. |
| first_indexed | 2024-12-14T22:50:52Z |
| format | Article |
| id | doaj.art-2b58bd3a824c48649211de73637f6726 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-14T22:50:52Z |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-2b58bd3a824c48649211de73637f67262022-12-21T22:44:43ZengIEEEIEEE Photonics Journal1943-06552017-01-01911710.1109/JPHOT.2017.26572227829357Near-Field Periodic Subwavelength Holey Metallic Plate for Far-Field Superresolution FocusingXiao-Hua Wang0Min Hu1Bing-Zhong Wang2Gang Zheng3Peng Chen4Institute of Applied Physics, University of Electronic Science and Technology of China, Chengdu, ChinaInstitute of Applied Physics, University of Electronic Science and Technology of China, Chengdu, ChinaInstitute of Applied Physics, University of Electronic Science and Technology of China, Chengdu, ChinaInstitute of Applied Physics, University of Electronic Science and Technology of China, Chengdu, ChinaInstitute of Applied Physics, University of Electronic Science and Technology of China, Chengdu, ChinaFar-field focusing with superresolution aided by a proposed metallic plate is investigated in this paper. The proposed near-field structure can be employed to distinguish point-like sources with subwavelength distance and enhance the field strength based on the spoof surface plasmon polaritons theory, and by the simulations of near- and far-field spectrums, it can be found that some near-field evanescent waves carried the superresolution information can be converted to propagation waves and propagate to the far-field. Therefore, with the help of time reversal imaging process, the far-field superresolution focusing is validated by the experiments in laboratory environment. A resolution of ~λ/13 is achieved from the last results, which is well beyond the diffraction limit.https://ieeexplore.ieee.org/document/7829357/Far-fieldsuper-resolutionmetallic platetime-reversalperiodic structure |
| spellingShingle | Xiao-Hua Wang Min Hu Bing-Zhong Wang Gang Zheng Peng Chen Near-Field Periodic Subwavelength Holey Metallic Plate for Far-Field Superresolution Focusing IEEE Photonics Journal Far-field super-resolution metallic plate time-reversal periodic structure |
| title | Near-Field Periodic Subwavelength Holey Metallic Plate for Far-Field Superresolution Focusing |
| title_full | Near-Field Periodic Subwavelength Holey Metallic Plate for Far-Field Superresolution Focusing |
| title_fullStr | Near-Field Periodic Subwavelength Holey Metallic Plate for Far-Field Superresolution Focusing |
| title_full_unstemmed | Near-Field Periodic Subwavelength Holey Metallic Plate for Far-Field Superresolution Focusing |
| title_short | Near-Field Periodic Subwavelength Holey Metallic Plate for Far-Field Superresolution Focusing |
| title_sort | near field periodic subwavelength holey metallic plate for far field superresolution focusing |
| topic | Far-field super-resolution metallic plate time-reversal periodic structure |
| url | https://ieeexplore.ieee.org/document/7829357/ |
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