Super-Diffraction Longitudinally Polarized Optical Needle With Ultra-Long Focal Depth Generated by a Radially Polarized High-Dimensional Circular Hollow Sinh-Gaussian Beam
In this paper, the incident beam called high-dimensional circular hollow sinh-Gaussian (HD-CHsG) beam with a novel wavefront is proposed, which is determined by three parameters (<italic>m</italic>, <italic>σ</italic><sub>0</sub>, <italic>�...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9655455/ |
| _version_ | 1828921497928859648 |
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| author | Si-Mo Wang Wei Yan Fan-Xing Li Fu-Ping Peng Jia-Lin Du |
| author_facet | Si-Mo Wang Wei Yan Fan-Xing Li Fu-Ping Peng Jia-Lin Du |
| author_sort | Si-Mo Wang |
| collection | DOAJ |
| description | In this paper, the incident beam called high-dimensional circular hollow sinh-Gaussian (HD-CHsG) beam with a novel wavefront is proposed, which is determined by three parameters (<italic>m</italic>, <italic>σ</italic><sub>0</sub>, <italic>σ</italic><sub>1</sub>). Based on the Richards-wolf vector diffraction theory, it can be focused into a longitudinal polarized optical needle through a high numerical aperture lens. The effects of the three parameters (<italic>m</italic>, <italic>σ</italic><sub>0</sub>, <italic>σ</italic><sub>1</sub>) on the resolution and depth of focus of the longitudinally polarized optical needle are simulated and analyzed. In the condition of (<italic>m</italic>, <italic>σ</italic><sub>0</sub>, <italic>σ</italic><sub>1</sub>) = (8, 0.6, 0.125), a super-diffraction longitudinal optical needle with ultra-long focal depth (resolution 0.40<italic>λ</italic>, focal depth 18.36<italic>λ</italic>, depth-to-width ratio 45.9:1) is generated. In addition, compared with a radially polarized incident beam whose amplitude distribution is Gaussian and circular hollow sinh-Gaussian (CHsG) distribution, the resolution and depth of focus of the longitudinally polarized optical needle obtained by focusing the HD-CHsG beam are higher. Both simulations and experiments are carried out to demonstrate the availability of our method. Our findings are of great significance to the production, manipulation, and application of longitudinally polarized optical needle. |
| first_indexed | 2024-12-13T22:04:54Z |
| format | Article |
| id | doaj.art-091dfb2e802a487fa6990c3a54080d04 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-13T22:04:54Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-091dfb2e802a487fa6990c3a54080d042022-12-21T23:29:54ZengIEEEIEEE Photonics Journal1943-06552022-01-011411910.1109/JPHOT.2021.31362119655455Super-Diffraction Longitudinally Polarized Optical Needle With Ultra-Long Focal Depth Generated by a Radially Polarized High-Dimensional Circular Hollow Sinh-Gaussian BeamSi-Mo Wang0https://orcid.org/0000-0003-4082-4250Wei Yan1https://orcid.org/0000-0002-5796-0569Fan-Xing Li2https://orcid.org/0000-0001-8374-8740Fu-Ping Peng3https://orcid.org/0000-0002-9493-8563Jia-Lin Du4https://orcid.org/0000-0003-0787-2234Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan, ChinaInstitute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan, ChinaInstitute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan, ChinaInstitute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan, ChinaInstitute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan, ChinaIn this paper, the incident beam called high-dimensional circular hollow sinh-Gaussian (HD-CHsG) beam with a novel wavefront is proposed, which is determined by three parameters (<italic>m</italic>, <italic>σ</italic><sub>0</sub>, <italic>σ</italic><sub>1</sub>). Based on the Richards-wolf vector diffraction theory, it can be focused into a longitudinal polarized optical needle through a high numerical aperture lens. The effects of the three parameters (<italic>m</italic>, <italic>σ</italic><sub>0</sub>, <italic>σ</italic><sub>1</sub>) on the resolution and depth of focus of the longitudinally polarized optical needle are simulated and analyzed. In the condition of (<italic>m</italic>, <italic>σ</italic><sub>0</sub>, <italic>σ</italic><sub>1</sub>) = (8, 0.6, 0.125), a super-diffraction longitudinal optical needle with ultra-long focal depth (resolution 0.40<italic>λ</italic>, focal depth 18.36<italic>λ</italic>, depth-to-width ratio 45.9:1) is generated. In addition, compared with a radially polarized incident beam whose amplitude distribution is Gaussian and circular hollow sinh-Gaussian (CHsG) distribution, the resolution and depth of focus of the longitudinally polarized optical needle obtained by focusing the HD-CHsG beam are higher. Both simulations and experiments are carried out to demonstrate the availability of our method. Our findings are of great significance to the production, manipulation, and application of longitudinally polarized optical needle.https://ieeexplore.ieee.org/document/9655455/Optical needlesuper-diffractionultra-long focal depthvector diffraction theoryhigh-dimensional circular hollow sinh-gaussian beam |
| spellingShingle | Si-Mo Wang Wei Yan Fan-Xing Li Fu-Ping Peng Jia-Lin Du Super-Diffraction Longitudinally Polarized Optical Needle With Ultra-Long Focal Depth Generated by a Radially Polarized High-Dimensional Circular Hollow Sinh-Gaussian Beam IEEE Photonics Journal Optical needle super-diffraction ultra-long focal depth vector diffraction theory high-dimensional circular hollow sinh-gaussian beam |
| title | Super-Diffraction Longitudinally Polarized Optical Needle With Ultra-Long Focal Depth Generated by a Radially Polarized High-Dimensional Circular Hollow Sinh-Gaussian Beam |
| title_full | Super-Diffraction Longitudinally Polarized Optical Needle With Ultra-Long Focal Depth Generated by a Radially Polarized High-Dimensional Circular Hollow Sinh-Gaussian Beam |
| title_fullStr | Super-Diffraction Longitudinally Polarized Optical Needle With Ultra-Long Focal Depth Generated by a Radially Polarized High-Dimensional Circular Hollow Sinh-Gaussian Beam |
| title_full_unstemmed | Super-Diffraction Longitudinally Polarized Optical Needle With Ultra-Long Focal Depth Generated by a Radially Polarized High-Dimensional Circular Hollow Sinh-Gaussian Beam |
| title_short | Super-Diffraction Longitudinally Polarized Optical Needle With Ultra-Long Focal Depth Generated by a Radially Polarized High-Dimensional Circular Hollow Sinh-Gaussian Beam |
| title_sort | super diffraction longitudinally polarized optical needle with ultra long focal depth generated by a radially polarized high dimensional circular hollow sinh gaussian beam |
| topic | Optical needle super-diffraction ultra-long focal depth vector diffraction theory high-dimensional circular hollow sinh-gaussian beam |
| url | https://ieeexplore.ieee.org/document/9655455/ |
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