Uncertainty in terahertz time-domain spectroscopy measurement

Withayachumnankul, W. and Fischer, Bernd M. and Lin, Hungyen and Abbott, Derek (2008) Uncertainty in terahertz time-domain spectroscopy measurement. Journal of the Optical Society of America B, 25 (6). pp. 1059-1072. ISSN 0740-3224

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Abstract

Measurements of optical constants at terahertz—or T-ray—frequencies have been performed extensively using terahertz time-domain spectroscopy (THz-TDS). Spectrometers, together with physical models explaining the interaction between a sample and T-ray radiation, are progressively being developed. Nevertheless, measurement errors in the optical constants, so far, have not been systematically analyzed. This situation calls for a comprehensive analysis of measurement uncertainty in THz-TDS systems. The sources of error existing in a terahertz spectrometer and throughout the parameter estimation process are identified. The analysis herein quantifies the impact of each source on the output optical constants. The resulting analytical model is evaluated against experimental THz-TDS data.

Item Type:
Journal Article
Journal or Publication Title:
Journal of the Optical Society of America B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3107
Subjects:
ID Code:
76840
Deposited By:
Deposited On:
24 Nov 2015 10:52
Refereed?:
Yes
Published?:
Published
Last Modified:
20 Oct 2020 03:42