在GdFeCo薄膜中电调节的多层光学度
Jun-Xiao Lin1,2, Bo-Jun Chen1, Shih-Min Hung1
1Department of Applied Physics, National Pingtung University, No. 4-18, Minsheng Road, 90044 Pingtung, Taiwan.
概括
研究人员使用电流和低磁场动态控制了GdFeCo合金中的光学圆性. 这种方法可以为先进的光学设备提供可调节的光极化.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 光学是什么?光学是什么?光学是什么?
背景情况:
- 像加多-铁- (GdFeCo) 这样的铁磁合金具有可调节的磁性和光学性质.
- 控制光学圆性对于开发先进的光学设备和操纵光极化至关重要.
研究的目的:
- 引入一种简单的方法来动态控制GdFeCo合金中的多层光学圆性.
- 调查磁补偿温度和组成在操纵圆形二元体 (CD) 中的作用.
主要方法:
- 使用来自电流的朱尔加热来切换旋转方向,在低磁场 (3.5 mT) 的帮助下.
- 制造具有接近或高于室温的磁性补偿温度的GdFeCo合金.
- 在可见 (VIS) 到紫外线 (UV) 光子能量范围内分析循环二元化 (CD).
主要成果:
- 通过操纵旋转方向来证明对光学圆性的动态控制.
- 实现了线性极化光的转化为圆极化光和反转旋转方向.
- 展示了FeCo对CD在Vis-to-UV范围内的主要贡献,确保了在补偿温度附近的光学圆性稳定性.
结论:
- 由于GdFeCo薄膜在奇拉光学中具有很大的应用潜力.
- 突出了稀土和过渡金属元素对CD现象的选择性贡献.
- 开发的方法有助于设计利用能量分辨率CD的先进光学设备.
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