Magnetooptic device and its driving method
文献类型：专利
| 作者 | YAMANISHI, MASAMICHI; ODA, HITOSHI |
| 发表日期 | 1992-12-22 |
| 专利号 | US5173955 |
| 著作权人 | CANON KABUSHIKI KAISHA |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Magnetooptic device and its driving method |
| 英文摘要 | There is provided a magnetooptic device including a substrate; a semiconductor layer having a quantum well structure formed on the substrate, in which the semiconductor layer is formed by alternately laminating a well layer and a barrier layer and at least the barrier layer in those layers contains magnetic ions; and electrodes to apply an electric field to the semiconductor layer. A light which was polarized in a predetermined direction is input to the semiconductor layer. A magnetic field is applied to the semiconductor layer. An electric field is applied to the semiconductor layer by the electrodes. The light which was transmitted in the semiconductor layer is extracted. A degree of leakage of a wave function of the carrier in the well layer into the barrier layer changes. An effective magnetic field which a carrier spin feels changes by an exchange interaction between the carrier spin and a magnetic moment associated with the magnetic ions. Thus, a degree of magnetooptic effect which is given to the transmission light changes. The degree of manetooptic effect can be controlled by the applied electric field. The magnetooptic device is preferably used as an optical modulator or an optical isolator in the field of optical communications or optical memories. |
| 公开日期 | 1992-12-22 |
| 申请日期 | 1991-02-20 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33371]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | CANON KABUSHIKI KAISHA |
| 推荐引用方式 GB/T 7714 | YAMANISHI, MASAMICHI,ODA, HITOSHI. Magnetooptic device and its driving method. US5173955. 1992-12-22. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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