Powerful and Tunable THz Emitters Based on the Fe/Pt Magnetic Heterostructure

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• 作者：Dewang Yang ; Jianhui Liang ; Chao Zhou ; Lu Sun ; Ronger Zheng ; Shengnian Luo ; Yizheng Wu and Jingbo Qi
• 刊名：Advanced Optical Materials
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：4
• 期：12
• 页码：1944-1949
• 全文大小：1548K
• ISSN：2195-1071

文摘

Heterostructures composed of ferromagnetic metal and nonmagnetic metal with strong spin-orbit coupling are shown to be powerful broadband THz emitters, whose field strength can be maximized by optimizing the thickness of both ferromagnetic and nonmagnetic films, and the heterostructure layers. Furthermore, the THz spectrum and its intensity are tunable by the magnetic field orientation applied on the patterned magnetic Fe/Pt heterostructures.