Strong Faraday Rotation Based on Localized Surface Plasmon Enhancement of Embedded Metallic Nanoparticles in Glass
The Faraday rotation originates from the mechanism by which the time‐reversal symmetry in the material is broken by the external magnetic field. It is the basis for the development of some magneto‐optical devices, such as optical isolators. In integrated optics and telecommunications, nonreciprocal...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2022-04-01
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| Series: | Small Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/smsc.202100094 |
| _version_ | 1818669213287448576 |
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| author | Han Zhu Mingsheng Gao Chi Pang Rang Li Lingrui Chu Feng Ren Wei Qin Feng Chen |
| author_facet | Han Zhu Mingsheng Gao Chi Pang Rang Li Lingrui Chu Feng Ren Wei Qin Feng Chen |
| author_sort | Han Zhu |
| collection | DOAJ |
| description | The Faraday rotation originates from the mechanism by which the time‐reversal symmetry in the material is broken by the external magnetic field. It is the basis for the development of some magneto‐optical devices, such as optical isolators. In integrated optics and telecommunications, nonreciprocal photonic devices with high transmittance and strong Faraday rotation are desired for low‐cost, compact optical systems. Localized surface plasmon resonance (LSPR) from the metallic nanoparticles in dielectrics allows the light localization in subwavelength scales, boosting the interaction between nanoparticles and materials, which results in a number of plasmon‐enhanced effects. Herein, the strong Faraday rotation in BK7 glass by embedded metallic nanoparticles through LSPR is reported. It is elucidated that the mechanism of Faraday rotation is the near‐field enhancement of spin–photon coupling effect in the presence of an external magnetic field. The Verdet constant of the thin‐layer BK7 glass with embedded Au nanoparticles is determined as high as 5059.7 rad T−1 m−1 at 532 nm, exhibiting excellent magneto‐optical features. This work opens a new avenue to develop the subwavelength magneto‐optical devices with embedded metallic nanoparticles. |
| first_indexed | 2024-12-17T06:48:38Z |
| format | Article |
| id | doaj.art-3b6333fb816546528037d93b7584af45 |
| institution | Directory Open Access Journal |
| issn | 2688-4046 |
| language | English |
| last_indexed | 2024-12-17T06:48:38Z |
| publishDate | 2022-04-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Small Science |
| spelling | doaj.art-3b6333fb816546528037d93b7584af452022-12-21T21:59:39ZengWiley-VCHSmall Science2688-40462022-04-0124n/an/a10.1002/smsc.202100094Strong Faraday Rotation Based on Localized Surface Plasmon Enhancement of Embedded Metallic Nanoparticles in GlassHan Zhu0Mingsheng Gao1Chi Pang2Rang Li3Lingrui Chu4Feng Ren5Wei Qin6Feng Chen7School of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 ChinaSchool of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 ChinaSchool of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 ChinaInstitute of Ion Beam Physics and Materials Research Helmholtz-Zentrum Dresden-Rossendorf 01328 Dresden GermanySchool of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 ChinaDepartment of Physics Center for Ion Beam Application and Center for Electron Microscopy Wuhan University Wuhan 430072 ChinaSchool of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 ChinaSchool of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 ChinaThe Faraday rotation originates from the mechanism by which the time‐reversal symmetry in the material is broken by the external magnetic field. It is the basis for the development of some magneto‐optical devices, such as optical isolators. In integrated optics and telecommunications, nonreciprocal photonic devices with high transmittance and strong Faraday rotation are desired for low‐cost, compact optical systems. Localized surface plasmon resonance (LSPR) from the metallic nanoparticles in dielectrics allows the light localization in subwavelength scales, boosting the interaction between nanoparticles and materials, which results in a number of plasmon‐enhanced effects. Herein, the strong Faraday rotation in BK7 glass by embedded metallic nanoparticles through LSPR is reported. It is elucidated that the mechanism of Faraday rotation is the near‐field enhancement of spin–photon coupling effect in the presence of an external magnetic field. The Verdet constant of the thin‐layer BK7 glass with embedded Au nanoparticles is determined as high as 5059.7 rad T−1 m−1 at 532 nm, exhibiting excellent magneto‐optical features. This work opens a new avenue to develop the subwavelength magneto‐optical devices with embedded metallic nanoparticles.https://doi.org/10.1002/smsc.202100094Faraday rotationintegrated photonic devicesion implantationlocalized surface plasmon resonanceorbital angular momentum |
| spellingShingle | Han Zhu Mingsheng Gao Chi Pang Rang Li Lingrui Chu Feng Ren Wei Qin Feng Chen Strong Faraday Rotation Based on Localized Surface Plasmon Enhancement of Embedded Metallic Nanoparticles in Glass Small Science Faraday rotation integrated photonic devices ion implantation localized surface plasmon resonance orbital angular momentum |
| title | Strong Faraday Rotation Based on Localized Surface Plasmon Enhancement of Embedded Metallic Nanoparticles in Glass |
| title_full | Strong Faraday Rotation Based on Localized Surface Plasmon Enhancement of Embedded Metallic Nanoparticles in Glass |
| title_fullStr | Strong Faraday Rotation Based on Localized Surface Plasmon Enhancement of Embedded Metallic Nanoparticles in Glass |
| title_full_unstemmed | Strong Faraday Rotation Based on Localized Surface Plasmon Enhancement of Embedded Metallic Nanoparticles in Glass |
| title_short | Strong Faraday Rotation Based on Localized Surface Plasmon Enhancement of Embedded Metallic Nanoparticles in Glass |
| title_sort | strong faraday rotation based on localized surface plasmon enhancement of embedded metallic nanoparticles in glass |
| topic | Faraday rotation integrated photonic devices ion implantation localized surface plasmon resonance orbital angular momentum |
| url | https://doi.org/10.1002/smsc.202100094 |
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