Far-Field Super-Resolution Imaging of Scatterers With a Time-Reversal System Aided by a Grating Plate
A time-reversal imaging system for far-field super-resolution imaging of scatterers is proposed. First, a grating plate, similar to the optical far-field super lens, is designed to convert near-field evanescent waves to propagative waves with wavevector modulation. Then, the scattered signals are pr...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2017-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/7784776/ |
| _version_ | 1819162868522680320 |
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| author | Zhi-Shuang Gong Bing-Zhong Wang Yu Yang Hong-Cheng Zhou Shuai Ding Xiao-Hua Wang |
| author_facet | Zhi-Shuang Gong Bing-Zhong Wang Yu Yang Hong-Cheng Zhou Shuai Ding Xiao-Hua Wang |
| author_sort | Zhi-Shuang Gong |
| collection | DOAJ |
| description | A time-reversal imaging system for far-field super-resolution imaging of scatterers is proposed. First, a grating plate, similar to the optical far-field super lens, is designed to convert near-field evanescent waves to propagative waves with wavevector modulation. Then, the scattered signals are processed by a time-reversal (TR) technique and retransmitted back. Finally, the images of the targets are reconstructed by doing demodulation operations in the k-domain to the TR field at the refocusing time. Imaging results show that two scatterers separated by 0.1 λ can be distinguished clearly. |
| first_indexed | 2024-12-22T17:35:05Z |
| format | Article |
| id | doaj.art-9e71bd55ba3c430bb07c7e19cad000da |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-22T17:35:05Z |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-9e71bd55ba3c430bb07c7e19cad000da2022-12-21T18:18:32ZengIEEEIEEE Photonics Journal1943-06552017-01-01911810.1109/JPHOT.2016.26406617784776Far-Field Super-Resolution Imaging of Scatterers With a Time-Reversal System Aided by a Grating PlateZhi-Shuang Gong0Bing-Zhong Wang1Yu Yang2Hong-Cheng Zhou3Shuai Ding4Xiao-Hua Wang5Institute 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, ChinaInstitute of Applied Physics, University of Electronic Science and Technology of China, Chengdu, ChinaA time-reversal imaging system for far-field super-resolution imaging of scatterers is proposed. First, a grating plate, similar to the optical far-field super lens, is designed to convert near-field evanescent waves to propagative waves with wavevector modulation. Then, the scattered signals are processed by a time-reversal (TR) technique and retransmitted back. Finally, the images of the targets are reconstructed by doing demodulation operations in the k-domain to the TR field at the refocusing time. Imaging results show that two scatterers separated by 0.1 λ can be distinguished clearly.https://ieeexplore.ieee.org/document/7784776/Super-resolution imagingfar-fieldtime reversal (TR) |
| spellingShingle | Zhi-Shuang Gong Bing-Zhong Wang Yu Yang Hong-Cheng Zhou Shuai Ding Xiao-Hua Wang Far-Field Super-Resolution Imaging of Scatterers With a Time-Reversal System Aided by a Grating Plate IEEE Photonics Journal Super-resolution imaging far-field time reversal (TR) |
| title | Far-Field Super-Resolution Imaging of Scatterers With a Time-Reversal System Aided by a Grating Plate |
| title_full | Far-Field Super-Resolution Imaging of Scatterers With a Time-Reversal System Aided by a Grating Plate |
| title_fullStr | Far-Field Super-Resolution Imaging of Scatterers With a Time-Reversal System Aided by a Grating Plate |
| title_full_unstemmed | Far-Field Super-Resolution Imaging of Scatterers With a Time-Reversal System Aided by a Grating Plate |
| title_short | Far-Field Super-Resolution Imaging of Scatterers With a Time-Reversal System Aided by a Grating Plate |
| title_sort | far field super resolution imaging of scatterers with a time reversal system aided by a grating plate |
| topic | Super-resolution imaging far-field time reversal (TR) |
| url | https://ieeexplore.ieee.org/document/7784776/ |
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