Ultra-narrow band perfect absorbance induced by magnetic lattice resonances in dielectric dimer metamaterials
Nanostructured dielectric metamaterials have received extensive attention in the field of nanophotonics owing to their low radiative losses and coexisting electric and magnetic lattice resonance features. Unfortunately, suffering from the poor electromagnetic field localization and weak magnetic res...
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| Format: | Article |
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Elsevier
2022-08-01
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| Series: | Results in Physics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379722004041 |
| _version_ | 1811294720279707648 |
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| author | Yiming Li Chuxuan Tan Jinyong Hu Wangdi Bai Runlu Zhang Qi Lin Yong Zhang Lingling Wang |
| author_facet | Yiming Li Chuxuan Tan Jinyong Hu Wangdi Bai Runlu Zhang Qi Lin Yong Zhang Lingling Wang |
| author_sort | Yiming Li |
| collection | DOAJ |
| description | Nanostructured dielectric metamaterials have received extensive attention in the field of nanophotonics owing to their low radiative losses and coexisting electric and magnetic lattice resonance features. Unfortunately, suffering from the poor electromagnetic field localization and weak magnetic response in the typical dielectric metamaterials, it remains challenging to simultaneously realize ultra-narrow band perfect absorbance and intensified electromagnetic field resonances. Herein, we theoretically demonstrate a kind of dielectric metamaterials formed by dielectric cylindrical dimer array that supports magnetic lattice resonances. Benefiting from the collective diffraction coupling among the powerful magnetic dipole resonance in the dielectric dimer array, the proposed dielectric metamaterials synchronously manifest ultra-narrow spectral characteristics with bandwidth less than 8 nm, perfect absorbance amplitude as high as 99.7% and strong electric/magnetic field enhancement factor. The effects of the structure parameters on the optical properties of the proposed nanostructure are investigated based on numerical simulations. The linewidth of absorbance spectrum can be narrowed down to approximately 3 nm with optimal design. These excellent optical features supported by the dielectric dimer metamaterials can be explored as a high-efficiency refractive index sensor with sensitivity of 824 nm/RIU and figure of merit as high as 242 RIU−1. This work paves an exciting way for narrow band perfect absorbance and localized field enhancement, exhibiting tremendous enormous potential in biochemical sensing, surface enhanced spectroscopy, and nonlinear nanophotonics. |
| first_indexed | 2024-04-13T05:21:39Z |
| format | Article |
| id | doaj.art-fbdf45d9e83947a69fd54a11b6e650f7 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-04-13T05:21:39Z |
| publishDate | 2022-08-01 |
| publisher | Elsevier |
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| series | Results in Physics |
| spelling | doaj.art-fbdf45d9e83947a69fd54a11b6e650f72022-12-22T03:00:44ZengElsevierResults in Physics2211-37972022-08-0139105730Ultra-narrow band perfect absorbance induced by magnetic lattice resonances in dielectric dimer metamaterialsYiming Li0Chuxuan Tan1Jinyong Hu2Wangdi Bai3Runlu Zhang4Qi Lin5Yong Zhang6Lingling Wang7School of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, China; Hunan Engineering Laboratory for Microelectronics, Optoelectronics and System on a Chip, Xiangtan University, Xiangtan 411105, ChinaSchool of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, China; Hunan Engineering Laboratory for Microelectronics, Optoelectronics and System on a Chip, Xiangtan University, Xiangtan 411105, ChinaSchool of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, China; Hunan Engineering Laboratory for Microelectronics, Optoelectronics and System on a Chip, Xiangtan University, Xiangtan 411105, China; Corresponding authors at: School of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, China.School of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, China; Hunan Engineering Laboratory for Microelectronics, Optoelectronics and System on a Chip, Xiangtan University, Xiangtan 411105, ChinaSchool of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, China; Hunan Engineering Laboratory for Microelectronics, Optoelectronics and System on a Chip, Xiangtan University, Xiangtan 411105, ChinaSchool of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, China; School of Physics and Electronics, Hunan University, Changsha 411082, ChinaSchool of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, China; Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan 411105, China; Corresponding authors at: School of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, China.School of Physics and Electronics, Hunan University, Changsha 411082, ChinaNanostructured dielectric metamaterials have received extensive attention in the field of nanophotonics owing to their low radiative losses and coexisting electric and magnetic lattice resonance features. Unfortunately, suffering from the poor electromagnetic field localization and weak magnetic response in the typical dielectric metamaterials, it remains challenging to simultaneously realize ultra-narrow band perfect absorbance and intensified electromagnetic field resonances. Herein, we theoretically demonstrate a kind of dielectric metamaterials formed by dielectric cylindrical dimer array that supports magnetic lattice resonances. Benefiting from the collective diffraction coupling among the powerful magnetic dipole resonance in the dielectric dimer array, the proposed dielectric metamaterials synchronously manifest ultra-narrow spectral characteristics with bandwidth less than 8 nm, perfect absorbance amplitude as high as 99.7% and strong electric/magnetic field enhancement factor. The effects of the structure parameters on the optical properties of the proposed nanostructure are investigated based on numerical simulations. The linewidth of absorbance spectrum can be narrowed down to approximately 3 nm with optimal design. These excellent optical features supported by the dielectric dimer metamaterials can be explored as a high-efficiency refractive index sensor with sensitivity of 824 nm/RIU and figure of merit as high as 242 RIU−1. This work paves an exciting way for narrow band perfect absorbance and localized field enhancement, exhibiting tremendous enormous potential in biochemical sensing, surface enhanced spectroscopy, and nonlinear nanophotonics.http://www.sciencedirect.com/science/article/pii/S2211379722004041Magnetic lattice resonancesDielectric metamaterialsPerfect absorbancePlasmonic sensors |
| spellingShingle | Yiming Li Chuxuan Tan Jinyong Hu Wangdi Bai Runlu Zhang Qi Lin Yong Zhang Lingling Wang Ultra-narrow band perfect absorbance induced by magnetic lattice resonances in dielectric dimer metamaterials Results in Physics Magnetic lattice resonances Dielectric metamaterials Perfect absorbance Plasmonic sensors |
| title | Ultra-narrow band perfect absorbance induced by magnetic lattice resonances in dielectric dimer metamaterials |
| title_full | Ultra-narrow band perfect absorbance induced by magnetic lattice resonances in dielectric dimer metamaterials |
| title_fullStr | Ultra-narrow band perfect absorbance induced by magnetic lattice resonances in dielectric dimer metamaterials |
| title_full_unstemmed | Ultra-narrow band perfect absorbance induced by magnetic lattice resonances in dielectric dimer metamaterials |
| title_short | Ultra-narrow band perfect absorbance induced by magnetic lattice resonances in dielectric dimer metamaterials |
| title_sort | ultra narrow band perfect absorbance induced by magnetic lattice resonances in dielectric dimer metamaterials |
| topic | Magnetic lattice resonances Dielectric metamaterials Perfect absorbance Plasmonic sensors |
| url | http://www.sciencedirect.com/science/article/pii/S2211379722004041 |
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