Coin Paradox Spin–Orbit Interaction Enhances Magneto-Optical Effect and Its Application in On-Chip Integrated Optical Isolator
Abstract We designed a simple on-chip integrated optical isolator made up of a metal–insulator–metal waveguide and a disc cavity filled with magneto-optical material to enhance the transverse magneto-optical effect through the coin paradox spin–orbit interaction (SOI). The simulation results of the...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-12-01
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| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s11671-021-03634-8 |
| _version_ | 1797713396188053504 |
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| author | Hao Hu Jiwei Qi Qiang Wu Xianhui Fu Hongjin Wu Sihao Zhang Zongqiang Chen Jing Chen Jianghong Yao Xuanyi Yu Qian Sun Jingjun Xu |
| author_facet | Hao Hu Jiwei Qi Qiang Wu Xianhui Fu Hongjin Wu Sihao Zhang Zongqiang Chen Jing Chen Jianghong Yao Xuanyi Yu Qian Sun Jingjun Xu |
| author_sort | Hao Hu |
| collection | DOAJ |
| description | Abstract We designed a simple on-chip integrated optical isolator made up of a metal–insulator–metal waveguide and a disc cavity filled with magneto-optical material to enhance the transverse magneto-optical effect through the coin paradox spin–orbit interaction (SOI). The simulation results of the non-reciprocal transmission properties of this optical structure show that a high-performance on-chip integrated optical isolator is obtained. The maximum isolation ratio is greater than 60 dB with a corresponding insertion loss of about 2 dB. The great performance of the optical isolator is attributed to the strong transverse magneto-optical effect, which is enhanced by the coin paradox SOI. Moreover, the enhancement of the transverse magneto-optical effect through the coin paradox SOI is more substantial for smaller azimuthal mode number n. Benefiting from this, the transverse magneto-optical effect remains strong in a wide wavelength range. Additionally, a smaller cavity has a stronger transverse magneto-optical effect in the same wavelength range. Our research provides a new perspective for creating highly integrated magneto-optical devices. |
| first_indexed | 2024-03-12T07:34:46Z |
| format | Article |
| id | doaj.art-0dea142884bc45f89db68e64cc0af257 |
| institution | Directory Open Access Journal |
| issn | 1556-276X |
| language | English |
| last_indexed | 2024-03-12T07:34:46Z |
| publishDate | 2021-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-0dea142884bc45f89db68e64cc0af2572023-09-02T21:32:24ZengSpringerOpenNanoscale Research Letters1556-276X2021-12-011611710.1186/s11671-021-03634-8Coin Paradox Spin–Orbit Interaction Enhances Magneto-Optical Effect and Its Application in On-Chip Integrated Optical IsolatorHao Hu0Jiwei Qi1Qiang Wu2Xianhui Fu3Hongjin Wu4Sihao Zhang5Zongqiang Chen6Jing Chen7Jianghong Yao8Xuanyi Yu9Qian Sun10Jingjun Xu11Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai UniversityKey Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai UniversityKey Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai UniversityKey Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai UniversityKey Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai UniversityKey Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai UniversityKey Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai UniversityKey Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai UniversityKey Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai UniversityKey Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai UniversityKey Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai UniversityKey Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai UniversityAbstract We designed a simple on-chip integrated optical isolator made up of a metal–insulator–metal waveguide and a disc cavity filled with magneto-optical material to enhance the transverse magneto-optical effect through the coin paradox spin–orbit interaction (SOI). The simulation results of the non-reciprocal transmission properties of this optical structure show that a high-performance on-chip integrated optical isolator is obtained. The maximum isolation ratio is greater than 60 dB with a corresponding insertion loss of about 2 dB. The great performance of the optical isolator is attributed to the strong transverse magneto-optical effect, which is enhanced by the coin paradox SOI. Moreover, the enhancement of the transverse magneto-optical effect through the coin paradox SOI is more substantial for smaller azimuthal mode number n. Benefiting from this, the transverse magneto-optical effect remains strong in a wide wavelength range. Additionally, a smaller cavity has a stronger transverse magneto-optical effect in the same wavelength range. Our research provides a new perspective for creating highly integrated magneto-optical devices.https://doi.org/10.1186/s11671-021-03634-8Coin paradoxSpin–orbit interactionsMagneto-optic effectIsolator |
| spellingShingle | Hao Hu Jiwei Qi Qiang Wu Xianhui Fu Hongjin Wu Sihao Zhang Zongqiang Chen Jing Chen Jianghong Yao Xuanyi Yu Qian Sun Jingjun Xu Coin Paradox Spin–Orbit Interaction Enhances Magneto-Optical Effect and Its Application in On-Chip Integrated Optical Isolator Nanoscale Research Letters Coin paradox Spin–orbit interactions Magneto-optic effect Isolator |
| title | Coin Paradox Spin–Orbit Interaction Enhances Magneto-Optical Effect and Its Application in On-Chip Integrated Optical Isolator |
| title_full | Coin Paradox Spin–Orbit Interaction Enhances Magneto-Optical Effect and Its Application in On-Chip Integrated Optical Isolator |
| title_fullStr | Coin Paradox Spin–Orbit Interaction Enhances Magneto-Optical Effect and Its Application in On-Chip Integrated Optical Isolator |
| title_full_unstemmed | Coin Paradox Spin–Orbit Interaction Enhances Magneto-Optical Effect and Its Application in On-Chip Integrated Optical Isolator |
| title_short | Coin Paradox Spin–Orbit Interaction Enhances Magneto-Optical Effect and Its Application in On-Chip Integrated Optical Isolator |
| title_sort | coin paradox spin orbit interaction enhances magneto optical effect and its application in on chip integrated optical isolator |
| topic | Coin paradox Spin–orbit interactions Magneto-optic effect Isolator |
| url | https://doi.org/10.1186/s11671-021-03634-8 |
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