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A direct comparison between terahertz time-domain spectroscopy and far-infrared Fourier transform spectroscopy

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6 Author(s)
Han, P.Y. ; Physics Department, Rensselaer Polytechnic Institute, Troy, New York 12180 ; Tani, M. ; Usami, M. ; Kono, S.
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Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.1343522 

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. © 2001 American Institute of Physics.

Published in:
Journal of Applied Physics  (Volume:89 ,  Issue: 4 )

Date of Publication: Feb 2001

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