Nanogratings Embedded in Al2O3-Dy2O3 Glass by Femtosecond Laser Irradiation
Nanogratings Embedded in Al2O3-Dy2O3 Glass by Femtosecond Laser Irradiation
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DOI：
10.2961/jlmn.2016.01.0016
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发表时间：
2016-02-01
影响因子：
1.1
通讯作者：
Miura, Kiyotaka
中科院分区：
文献类型：
--
作者：
Mori, Satoshi;Kurita, Torataro;Miura, Kiyotaka
在飞秒光脉冲作用下，随着激光偏振度的变化，自组装纳米尺度嵌入到许多材料中，是一种有趣的现象。奇怪的是，这种周期性纳米结构的取向在玻璃和间接带隙半导体中是不同的。此外，能够诱导纳米额定值的材料也是有限的。本文报道了在玻璃形成能力较低的Al_2O_3-Dy_2O_3二元玻璃中成功地诱导出与偏振相关的周期性纳米结构。在这种二元玻璃的情况下，我们证实了激光照射同时诱导了自组织和部分析晶。Al_2O_3-Dy_2O_3玻璃的这种光致结构在纳米尺度上表现出周期性的磁性调制。
The self-assembled nanogratings embedded in number of materials, which are aligned according to the laser polarization, is an intriguing phenomenon induced by femtosecond light pulses. Curiously, the orientation of such periodic nanostructure is different between a glass and an indirect bandgap semiconductor. Furthermore a material in which nanogratings can be induced is limited. Here we report that a polarization-dependent periodic nanostructure can be successfully induced in Al2O3-Dy2O3 binary glass with a low glass formation ability. In the case of this binary glass, we confirmed that the self-organization and partial-crystallization were simultaneously induced by the laser irradiation. Such photoinduced structure in Al2O3-Dy2O3 glass exhibit periodic modulation in magnetic properties in nanoscale.