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题名:
Characterization of hafnia thin films made with different deposition technologies
作者: Wanjun Ai; Shengming Xiong
出版日期: 2011
会议名称: Proc. of SPIE
会议日期: 2011
通讯作者: Wanjun Ai
中文摘要: In this study, single layer hafnium dioxide thin films were prepared by electron beam deposition (EBD), ion assisted deposition (IAD) with End-Hall and APS ion sources, and ion beam sputtering (IBS). The starting materials for EBD and IAD were hafnium and granulated hafnia, whereas the target for IBS was hafnium. Comprehensive characterization of these films such as structural and optical properties, surface topography and weak absorption have been studied via Xray diffraction (XRD), Lambda 900 spectrophotometer, variable angle spectroscopic ellipsometry (VASE), scanning electron microscopy (SEM), ZYGO interferometer, and Laser Calorimeter. The results show that thin film properties have a close relationship with deposition technologies. The EBD and IBS films are largely amorphous, however, the IAD films with different ion sources are all polycrystalline but with different crystal structures. Comparison with EBD films, the IAD and IBS films, of which the structures are very compact, represent higher refractive index and weak absorption. RMS roughness and total integrated scattering (TIS) of IAD and IBS films were lower than the EBD films. All of these results are useful to investigate the laser-induced damage threshold (LIDT) of hafnium dioxide thin films and hafnia/silica high reflectors for high power laser applications.
英文摘要: In this study, single layer hafnium dioxide thin films were prepared by electron beam deposition (EBD), ion assisted deposition (IAD) with End-Hall and APS ion sources, and ion beam sputtering (IBS). The starting materials for EBD and IAD were hafnium and granulated hafnia, whereas the target for IBS was hafnium. Comprehensive characterization of these films such as structural and optical properties, surface topography and weak absorption have been studied via Xray diffraction (XRD), Lambda 900 spectrophotometer, variable angle spectroscopic ellipsometry (VASE), scanning electron microscopy (SEM), ZYGO interferometer, and Laser Calorimeter. The results show that thin film properties have a close relationship with deposition technologies. The EBD and IBS films are largely amorphous, however, the IAD films with different ion sources are all polycrystalline but with different crystal structures. Comparison with EBD films, the IAD and IBS films, of which the structures are very compact, represent higher refractive index and weak absorption. RMS roughness and total integrated scattering (TIS) of IAD and IBS films were lower than the EBD films. All of these results are useful to investigate the laser-induced damage threshold (LIDT) of hafnium dioxide thin films and hafnia/silica high reflectors for high power laser applications.
收录类别: Ei
语种: 英语
卷号: 8190
文章类型: 会议论文
内容类型: 会议论文
URI标识: http://ir.ioe.ac.cn/handle/181551/7849
Appears in Collections:薄膜光学技术研究室(十一室)_会议论文

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作者单位: 中国科学院光电技术研究所

Recommended Citation:
Wanjun Ai,Shengming Xiong. Characterization of hafnia thin films made with different deposition technologies[C]. 见:Proc. of SPIE. 2011.
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