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Helicity-dependent ...
Helicity-dependent terahertz radiation from topological insulator Sb2Te3 thin film by femtosecond optical excitation
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- Tu, Chien Ming (author)
- Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,National Chiao Tung University
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- Chen, Yi Cheng (author)
- National Chiao Tung University
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- Huang, Ping (author)
- National Chiao Tung University
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- Chuang, Pei Yu (author)
- National Chiao Tung University
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- Lin, Ming Yu (author)
- National Chiao Tung University
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- Luo, Chih Wei (author)
- National Chiao Tung University
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- Cheng, Cheng Maw (author)
- National Synchrotron Radiation Research Center Taiwan
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- Lin, Jiunn Yuan (author)
- National Chiao Tung University
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- Huang, Jung Chun (author)
- National Chiao Tung University
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- Pong, Way Faung (author)
- Tamkang University
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- Kobayashi, Takayoshi (author)
- National Chiao Tung University
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(creator_code:org_t)
- 2016
- 2016
- English.
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In: 41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016. - 9781467384858
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http://dx.doi.org/10...
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Abstract
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- We report on terahertz radiation from topological insulator (TI) Sb2Te3 thin film under ultrafast optical excitation with different helicity. Polarity-reversals of the emitted THz radiation were observed as the helicity of optical pulses reversed. The observed phenomena are coincident with the characteristics of the helicity-dependent photocurrent on TIs. Our work demonstrates the potential applications of surface photocurrents on TIs for opto-spintronics devices.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Publication and Content Type
- kon (subject category)
- ref (subject category)
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- By the author/editor
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Tu, Chien Ming
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Chen, Yi Cheng
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Huang, Ping
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Chuang, Pei Yu
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Lin, Ming Yu
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Luo, Chih Wei
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show more...
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Cheng, Cheng Maw
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Lin, Jiunn Yuan
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Huang, Jung Chun
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Pong, Way Faung
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Kobayashi, Takay ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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41st Internation ...
- By the university
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Lund University