Tunable Magnetization Chains Induced With Annular Parabolic Mirrors
Based on the inverse Faraday effect, tunable light-induced magnetization chains are investigated by focusing narrow annular azimuthally polarized vortex beams with a 4<inline-formula><tex-math notation="LaTeX">$\pi$</tex-math> </inline-formula> focusing system compo...
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8449312/ |
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| author | Li Hang Kaixi Huang Jian Fu Ying Wang Peifeng Chen |
| author_facet | Li Hang Kaixi Huang Jian Fu Ying Wang Peifeng Chen |
| author_sort | Li Hang |
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| description | Based on the inverse Faraday effect, tunable light-induced magnetization chains are investigated by focusing narrow annular azimuthally polarized vortex beams with a 4<inline-formula><tex-math notation="LaTeX">$\pi$</tex-math> </inline-formula> focusing system composed of double annular parabolic mirrors. Using Richards–Wolf vector diffraction theory, approximate analytical expressions of all parameters of the magnetization chains are theoretically calculated, realizing that all parameters are tunable. The calculated results show that the parameters are independent of the amplitude distribution function of the incident beam and the apodization factor of the focusing system. Hence, different kinds of long (about <inline-formula><tex-math notation="LaTeX">$100\lambda$</tex-math></inline-formula>) chains with sub-wavelength lateral size can be achieved by adjusting the central angular position, the angular width, and the phase difference of two counter-propagating incident beams. Compared with lenses, parabolic mirrors can generate multi-needle fields that lenses cannot. |
| format | Article |
| id | doaj-art-ef2676af6d644e769e2ba6b6d5df9161 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-ef2676af6d644e769e2ba6b6d5df91612025-08-20T03:31:21ZengIEEEIEEE Photonics Journal1943-06552018-01-011051710.1109/JPHOT.2018.28582958449312Tunable Magnetization Chains Induced With Annular Parabolic MirrorsLi Hang0https://orcid.org/0000-0002-7784-3212Kaixi Huang1https://orcid.org/0000-0003-1150-8283Jian Fu2Ying Wang3Peifeng Chen4https://orcid.org/0000-0002-9123-1925School of Optical and Electronic Information, Huazhong University of Science and Technology(HUST), Wuhan, ChinaSchool of Optical and Electronic Information, Huazhong University of Science and Technology(HUST), Wuhan, ChinaSchool of Optical and Electronic Information, Huazhong University of Science and Technology(HUST), Wuhan, ChinaSchool of Optical and Electronic Information, Huazhong University of Science and Technology(HUST), Wuhan, ChinaSchool of Optical and Electronic Information, Huazhong University of Science and Technology(HUST), Wuhan, ChinaBased on the inverse Faraday effect, tunable light-induced magnetization chains are investigated by focusing narrow annular azimuthally polarized vortex beams with a 4<inline-formula><tex-math notation="LaTeX">$\pi$</tex-math> </inline-formula> focusing system composed of double annular parabolic mirrors. Using Richards–Wolf vector diffraction theory, approximate analytical expressions of all parameters of the magnetization chains are theoretically calculated, realizing that all parameters are tunable. The calculated results show that the parameters are independent of the amplitude distribution function of the incident beam and the apodization factor of the focusing system. Hence, different kinds of long (about <inline-formula><tex-math notation="LaTeX">$100\lambda$</tex-math></inline-formula>) chains with sub-wavelength lateral size can be achieved by adjusting the central angular position, the angular width, and the phase difference of two counter-propagating incident beams. Compared with lenses, parabolic mirrors can generate multi-needle fields that lenses cannot.https://ieeexplore.ieee.org/document/8449312/Magneto-optical materialspolarizationparabolic mirror. |
| spellingShingle | Li Hang Kaixi Huang Jian Fu Ying Wang Peifeng Chen Tunable Magnetization Chains Induced With Annular Parabolic Mirrors IEEE Photonics Journal Magneto-optical materials polarization parabolic mirror. |
| title | Tunable Magnetization Chains Induced With Annular Parabolic Mirrors |
| title_full | Tunable Magnetization Chains Induced With Annular Parabolic Mirrors |
| title_fullStr | Tunable Magnetization Chains Induced With Annular Parabolic Mirrors |
| title_full_unstemmed | Tunable Magnetization Chains Induced With Annular Parabolic Mirrors |
| title_short | Tunable Magnetization Chains Induced With Annular Parabolic Mirrors |
| title_sort | tunable magnetization chains induced with annular parabolic mirrors |
| topic | Magneto-optical materials polarization parabolic mirror. |
| url | https://ieeexplore.ieee.org/document/8449312/ |
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