Broadband Terahertz Radiation Emitter Using Femtosecond-Laser-Irradiated n-Type InAs under Magnetic Field
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概要
- 論文の詳細を見る
We present the generation of broadband terahertz (THz) radiation using n-type InAs irradiated by ultrafast laser pulses. It is found that the high-frequency component of the THz-radiation spectrum originates from the hybrid modes of the plasmons and the longitudinal optical (LO) phonons, whose peak frequency shifts toward higher frequency with increasing doping density. For n-type InAs with a doping density of $3.1\times 10^{17}$ cm-3, the high-frequency components of THz-radiation spectrum are observed at around 5.5 and 9 THz. Furthermore, the enhancement of THz-radiation power from these hybrid modes is achieved by applying an external magnetic field.
- 2004-02-01
著者
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QUEMA Alex
Institute for Molecular Science
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Goto Masahiro
Institute For Molecular Science (ims)
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Ono Shingo
Department Of Engineering Physics Electronics And Machanics Graduate School Of Engineering Nagoya In
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SARUKURA Nobuhiko
Department of Photo Science, The Graduate University for Advanced Studies
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HASSELBECK Michael
Department of Physics and Astronomy, University of New Mexico
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Takahashi Hiroshi
Department Of Applied Aquabiology National Fisheries University
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Hasselbeck Michael
Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131, U. S. A.
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