Photonic Wheels and Their Topological Reaction in a Strongly Focused Amplitude Tailored Beam
In this article, we propose a simple method to generate purely transverse spin density in a high numerical aperture system, and it is realized by focusing an amplitude tailored beam with a dipole-like shape. Through our analytical analysis, it is found that in this focused field the purely transvers...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9039719/ |
| _version_ | 1831673321723265024 |
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| author | Wenrui Miao Xiaoyan Pang Wenhao Liu |
| author_facet | Wenrui Miao Xiaoyan Pang Wenhao Liu |
| author_sort | Wenrui Miao |
| collection | DOAJ |
| description | In this article, we propose a simple method to generate purely transverse spin density in a high numerical aperture system, and it is realized by focusing an amplitude tailored beam with a dipole-like shape. Through our analytical analysis, it is found that in this focused field the purely transverse spin density is not only confined in the focal plane, but also can exist in two mutually perpendicular meridional planes. Especially, the fields with purely transverse spin density are also examined from the view of topology. Two typical topological events which usually happen in traditional two dimensional transverse fields are observed in the meridional plane with purely transverse spin density, and it shows that the `photonic wheels' follow the rule of topological index in their topological reactions. To the best of our knowledge, it is the first time to test the topological behavior of the field with purely transverse spin density. Our finding not only supplies a simple way to generate `photonic wheels' in three planes of the field, but also adds new features to the field containing `photonic wheels'. |
| first_indexed | 2024-12-20T03:24:14Z |
| format | Article |
| id | doaj.art-3a46c97e5aa74e59a646efb4ca2b49bf |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-20T03:24:14Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-3a46c97e5aa74e59a646efb4ca2b49bf2022-12-21T19:55:08ZengIEEEIEEE Photonics Journal1943-06552020-01-011221910.1109/JPHOT.2020.29813479039719Photonic Wheels and Their Topological Reaction in a Strongly Focused Amplitude Tailored BeamWenrui Miao0Xiaoyan Pang1https://orcid.org/0000-0001-8265-0952Wenhao Liu2School of Electronics and Information, Northwestern Polytechnical University, Xi’an, ChinaSchool of Electronics and Information, Northwestern Polytechnical University, Xi’an, ChinaSchool of Electronics and Information, Northwestern Polytechnical University, Xi’an, ChinaIn this article, we propose a simple method to generate purely transverse spin density in a high numerical aperture system, and it is realized by focusing an amplitude tailored beam with a dipole-like shape. Through our analytical analysis, it is found that in this focused field the purely transverse spin density is not only confined in the focal plane, but also can exist in two mutually perpendicular meridional planes. Especially, the fields with purely transverse spin density are also examined from the view of topology. Two typical topological events which usually happen in traditional two dimensional transverse fields are observed in the meridional plane with purely transverse spin density, and it shows that the `photonic wheels' follow the rule of topological index in their topological reactions. To the best of our knowledge, it is the first time to test the topological behavior of the field with purely transverse spin density. Our finding not only supplies a simple way to generate `photonic wheels' in three planes of the field, but also adds new features to the field containing `photonic wheels'.https://ieeexplore.ieee.org/document/9039719/Transverse spin densitypolarizationtopological reactionphotonic wheel |
| spellingShingle | Wenrui Miao Xiaoyan Pang Wenhao Liu Photonic Wheels and Their Topological Reaction in a Strongly Focused Amplitude Tailored Beam IEEE Photonics Journal Transverse spin density polarization topological reaction photonic wheel |
| title | Photonic Wheels and Their Topological Reaction in a Strongly Focused Amplitude Tailored Beam |
| title_full | Photonic Wheels and Their Topological Reaction in a Strongly Focused Amplitude Tailored Beam |
| title_fullStr | Photonic Wheels and Their Topological Reaction in a Strongly Focused Amplitude Tailored Beam |
| title_full_unstemmed | Photonic Wheels and Their Topological Reaction in a Strongly Focused Amplitude Tailored Beam |
| title_short | Photonic Wheels and Their Topological Reaction in a Strongly Focused Amplitude Tailored Beam |
| title_sort | photonic wheels and their topological reaction in a strongly focused amplitude tailored beam |
| topic | Transverse spin density polarization topological reaction photonic wheel |
| url | https://ieeexplore.ieee.org/document/9039719/ |
| work_keys_str_mv | AT wenruimiao photonicwheelsandtheirtopologicalreactioninastronglyfocusedamplitudetailoredbeam AT xiaoyanpang photonicwheelsandtheirtopologicalreactioninastronglyfocusedamplitudetailoredbeam AT wenhaoliu photonicwheelsandtheirtopologicalreactioninastronglyfocusedamplitudetailoredbeam |