A direct comparison between terahertz time-domain spectroscopy and far-infrared Fourier transform spectroscopy
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- P. Y. Han
- Physics Department, Rensselaer Polytechnic Institute, Troy, New York 12180
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- M. Tani
- Kansai Advanced Research Center, Kobe, 651-2401 Japan
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- M. Usami
- Kansai Advanced Research Center, Kobe, 651-2401 Japan
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- S. Kono
- Kansai Advanced Research Center, Kobe, 651-2401 Japan
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- R. Kersting
- Physics Department, Rensselaer Polytechnic Institute, Troy, New York 12180
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- X.-C. Zhang
- Physics Department, Rensselaer Polytechnic Institute, Troy, New York 12180
説明
<jats:p>We perform a comprehensive comparison between terahertz (THz) time-domain spectroscopy and conventional far-infrared Fourier transform spectroscopy, including radiation source, detector, signal to noise ratio, bandwidth, availability, applications, and their own uniqueness. In terms of signal to noise ratio, THz time-domain spectroscopy is advantageous at low frequencies under 3 THz, while Fourier transform spectroscopy works better at frequencies above 5 THz. In addition, we provide a detailed discussion of the unique features of THz time-domain spectroscopy and its application to dynamic and time-resolved processes.</jats:p>
収録刊行物
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- Journal of Applied Physics
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Journal of Applied Physics 89 (4), 2357-2359, 2001-02-15
AIP Publishing