Abstract
We present three techniques of calibrating frequency and spectral profile measurements of terahertz time-domain spectrometers. The first utilizes the etalon effect generated by multiple reflections in thin nonabsorbing samples. The second employs a CO gas cell to provide multiple narrow absorption lines at known frequencies. The third aims to use a grating monochromator to produce an independently measured comparable spectrum. (C) 2009 Optical Society of America
Original language | English |
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Pages (from-to) | 1357-1362 |
Number of pages | 6 |
Journal | Journal of the Optical Society of America B : Optical Physics |
Volume | 26 |
Issue number | 7 |
Publication status | Published - Jul 2009 |
Keywords
- SPECTROSCOPY