Cylindrical vector beams reveal radiationless anapole condition in a resonant state
Nonscattering optical anapole condition is corresponding to the excitation of radiationless field distributions in open resonators, which offers new degrees of freedom for tailoring light-matter interaction. Conventional mechanisms for achieving such a condition relies on sophisticated manipulation...
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| Format: | Article |
| Language: | English |
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Institue of Optics and Electronics, Chinese Academy of Sciences
2022-04-01
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| Series: | Opto-Electronic Advances |
| Subjects: | |
| Online Access: | https://www.oejournal.org/article/doi/10.29026/oea.2022.210014 |
| _version_ | 1811307818882433024 |
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| author | Yudong Lu Yi Xu Xu Ouyang Mingcong Xian Yaoyu Cao Kai Chen Xiangping Li |
| author_facet | Yudong Lu Yi Xu Xu Ouyang Mingcong Xian Yaoyu Cao Kai Chen Xiangping Li |
| author_sort | Yudong Lu |
| collection | DOAJ |
| description | Nonscattering optical anapole condition is corresponding to the excitation of radiationless field distributions in open resonators, which offers new degrees of freedom for tailoring light-matter interaction. Conventional mechanisms for achieving such a condition relies on sophisticated manipulation of electromagnetic multipolar moments of all orders to guarantee superpositions of suppressed moment strengths at the same wavelength. In contrast, here we report on the excitation of optical radiationless anapole hidden in a resonant state of a Si nanoparticle utilizing a tightly focused radially polarized (RP) beam. The coexistence of magnetic resonant state and anapole condition at the same wavelength further enables the triggering of resonant state by a tightly focused azimuthally polarized (AP) beam whose corresponding electric multipole coefficient could be zero. As a result, high contrast inter-transition between radiationless anapole condition and ideal magnetic resonant scattering can be achieved experimentally in visible spectrum. The proposed mechanism is general which can be realized in different types of nanostructures. Our results showcase that the unique combination of structured light and structured Mie resonances could provide new degrees of freedom for tailoring light-matter interaction, which might shed new light on functional meta-optics. |
| first_indexed | 2024-04-13T09:11:05Z |
| format | Article |
| id | doaj.art-492f6e24ff5441e58e2c994913ed0fb6 |
| institution | Directory Open Access Journal |
| issn | 2096-4579 |
| language | English |
| last_indexed | 2024-04-13T09:11:05Z |
| publishDate | 2022-04-01 |
| publisher | Institue of Optics and Electronics, Chinese Academy of Sciences |
| record_format | Article |
| series | Opto-Electronic Advances |
| spelling | doaj.art-492f6e24ff5441e58e2c994913ed0fb62022-12-22T02:52:52ZengInstitue of Optics and Electronics, Chinese Academy of SciencesOpto-Electronic Advances2096-45792022-04-01541710.29026/oea.2022.210014oea-2021-0014-LixiangpingCylindrical vector beams reveal radiationless anapole condition in a resonant stateYudong Lu0Yi Xu1Xu Ouyang2Mingcong Xian3Yaoyu Cao4Kai Chen5Xiangping Li6Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, ChinaGuangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, ChinaGuangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, ChinaDepartment of Electronic Engineering, College of Information Science and Technology, Jinan University, Guangzhou 510632, ChinaGuangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, ChinaGuangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, ChinaGuangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, ChinaNonscattering optical anapole condition is corresponding to the excitation of radiationless field distributions in open resonators, which offers new degrees of freedom for tailoring light-matter interaction. Conventional mechanisms for achieving such a condition relies on sophisticated manipulation of electromagnetic multipolar moments of all orders to guarantee superpositions of suppressed moment strengths at the same wavelength. In contrast, here we report on the excitation of optical radiationless anapole hidden in a resonant state of a Si nanoparticle utilizing a tightly focused radially polarized (RP) beam. The coexistence of magnetic resonant state and anapole condition at the same wavelength further enables the triggering of resonant state by a tightly focused azimuthally polarized (AP) beam whose corresponding electric multipole coefficient could be zero. As a result, high contrast inter-transition between radiationless anapole condition and ideal magnetic resonant scattering can be achieved experimentally in visible spectrum. The proposed mechanism is general which can be realized in different types of nanostructures. Our results showcase that the unique combination of structured light and structured Mie resonances could provide new degrees of freedom for tailoring light-matter interaction, which might shed new light on functional meta-optics.https://www.oejournal.org/article/doi/10.29026/oea.2022.210014anapolemultipole decompositionall-dielectric nanoparticles |
| spellingShingle | Yudong Lu Yi Xu Xu Ouyang Mingcong Xian Yaoyu Cao Kai Chen Xiangping Li Cylindrical vector beams reveal radiationless anapole condition in a resonant state Opto-Electronic Advances anapole multipole decomposition all-dielectric nanoparticles |
| title | Cylindrical vector beams reveal radiationless anapole condition in a resonant state |
| title_full | Cylindrical vector beams reveal radiationless anapole condition in a resonant state |
| title_fullStr | Cylindrical vector beams reveal radiationless anapole condition in a resonant state |
| title_full_unstemmed | Cylindrical vector beams reveal radiationless anapole condition in a resonant state |
| title_short | Cylindrical vector beams reveal radiationless anapole condition in a resonant state |
| title_sort | cylindrical vector beams reveal radiationless anapole condition in a resonant state |
| topic | anapole multipole decomposition all-dielectric nanoparticles |
| url | https://www.oejournal.org/article/doi/10.29026/oea.2022.210014 |
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