Magneto-optical spectroscopy based on pump-probe strobe light
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arXiv
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| Autores principales: | , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Acceso en línea: | |
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| _version_ | 1866917049128714240 |
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| author | Zhou, Shihao Zhu, Yujie Tang, Chunli Sun, Rui Wu, Junming Xiong, Yuzan Russell, Ingrid E. Li, Yi Sun, Dali Tsui, Frank Yang, Binbin Novosad, Valentine Hu, Jia-Mian Jin, Wencan Zhang, Wei |
| author_facet | Zhou, Shihao Zhu, Yujie Tang, Chunli Sun, Rui Wu, Junming Xiong, Yuzan Russell, Ingrid E. Li, Yi Sun, Dali Tsui, Frank Yang, Binbin Novosad, Valentine Hu, Jia-Mian Jin, Wencan Zhang, Wei |
| contents | We demonstrate a pump-probe strobe light spectroscopy for sensitive detection of magneto-optical dynamics in the context of hybrid magnonics. The technique uses a combinatorial microwave-optical pump-probe scheme, leveraging both the high-energy resolution of microwaves and the high-efficiency detection using optical photons. In contrast to conventional stroboscopy using a continuous-wave light, we apply microwave and optical pulses with varying pulse widths, and demonstrate magnetooptical detection of magnetization dynamics in Y3Fe5O12 films. The detected magneto-optical signals strongly depend on the characteristics of both the microwave and the optical pulses as well as their relative time delays. We show that good magneto-optical sensitivity and coherent stroboscopic character are maintained even at a microwave pump pulse of 1.5 ns and an optical probe pulse of 80 ps, under a 7 megahertz clock rate, corresponding to a pump-probe footprint of ~1% in one detection cycle. Our results show that time-dependent strobe light measurement of magnetization dynamics can be achieved in the gigahertz frequency range under a pump-probe detection scheme. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_24964 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Magneto-optical spectroscopy based on pump-probe strobe light Zhou, Shihao Zhu, Yujie Tang, Chunli Sun, Rui Wu, Junming Xiong, Yuzan Russell, Ingrid E. Li, Yi Sun, Dali Tsui, Frank Yang, Binbin Novosad, Valentine Hu, Jia-Mian Jin, Wencan Zhang, Wei Mesoscale and Nanoscale Physics Materials Science Applied Physics We demonstrate a pump-probe strobe light spectroscopy for sensitive detection of magneto-optical dynamics in the context of hybrid magnonics. The technique uses a combinatorial microwave-optical pump-probe scheme, leveraging both the high-energy resolution of microwaves and the high-efficiency detection using optical photons. In contrast to conventional stroboscopy using a continuous-wave light, we apply microwave and optical pulses with varying pulse widths, and demonstrate magnetooptical detection of magnetization dynamics in Y3Fe5O12 films. The detected magneto-optical signals strongly depend on the characteristics of both the microwave and the optical pulses as well as their relative time delays. We show that good magneto-optical sensitivity and coherent stroboscopic character are maintained even at a microwave pump pulse of 1.5 ns and an optical probe pulse of 80 ps, under a 7 megahertz clock rate, corresponding to a pump-probe footprint of ~1% in one detection cycle. Our results show that time-dependent strobe light measurement of magnetization dynamics can be achieved in the gigahertz frequency range under a pump-probe detection scheme. |
| title | Magneto-optical spectroscopy based on pump-probe strobe light |
| topic | Mesoscale and Nanoscale Physics Materials Science Applied Physics |
| url | https://arxiv.org/abs/2510.24964 |