https://scholars.lib.ntu.edu.tw/handle/123456789/633837
標題: | Magnetic-field switching of second-harmonic generation in noncentrosymmetric magnet Eu2MnSi2 O7 | 作者: | Toyoda, Shingo Liao, Jiou Cing GUANG-YU GUO Tokunaga, Yusuke Arima, Taka Hisa Tokura, Yoshinori Ogawa, Naoki |
公開日期: | 1-二月-2023 | 卷: | 7 | 期: | 2 | 來源出版物: | Physical Review Materials | 摘要: | We report a giant magnetic-field effect on optical second-harmonic generation (SHG) in a noncentrosymmetric ferrimagnet Eu2MnSi2O7. The SHG intensity changes at visible photon energy of 2.8 eV by more than 7000% upon the reversal of magnetic-field direction. Such pronounced modulation of the nonlinear optical activity results from an interference between crystallographic and magnetically induced nonlinear polarization. The amplitude of these nonlinear optical susceptibilities is controlled by the spin alignment and the light incident angle, enabling to optimize the magnetic switching of SHG in detail. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/633837 | ISSN: | 2475-9953 | DOI: | 10.1103/PhysRevMaterials.7.024403 |
顯示於: | 物理學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。