Powerful and Tunable THz Emitters Based on the Fe/Pt Magnetic Heterostructure. Issue 12 (24th August 2016)

• Record Type: Journal Article
• Authors: Yang, Dewang; Liang, Jianhui; Zhou, Chao; Sun, Lu; Zheng, Ronger; Luo, Shengnian; Wu, Yizheng; Qi, Jingbo
• Is Part Of: Advanced optical materials. Volume 4:Issue 12(2016:Dec.)
• Page Start: 1944
• Page End: 1949
• Publication Date: 2016-08-24
• Subjects: femtosecond laser pulses -- inverse spin Hall effect -- magnetic heterostructures -- THz wave emission; Optical materials -- Periodicals; Photonics -- Periodicals; 620.11295
• DOI: 10.1002/adom.201600270
• Languages: English
• ISSNs: 2195-1071

Abstract

Abstract : 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.