Material thickness optimization for transmission-mode terahertz time-domain spectroscopy

Withayachumnankul, Withawat; Fischer, Bernd; Abbott, Derek

doi:10.1364/oe.16.007382

Cited by 86 publications

(42 citation statements)

References 27 publications

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“…However this result may still be higher and is still within experimental THz-TDS of Filter Paper at Differing Humidities T errors. This also verifies that the optimum thickness is better for 7 pieces as determined by the relationship from [4]. The absorption coefficient of one piece of filter paper increases with frequency over 0.15-1.08 THz.…”

Section: Resultssupporting

confidence: 69%

THz-TDS of filter paper at differing humidities

Pogson

Scott

Garvey

et al. 2010

35th International Conference on Infrared, Millimeter, and Terahertz Waves

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Section: Resultssupporting

confidence: 69%

THz-TDS of filter paper at differing humidities

Pogson

Scott

Garvey

et al. 2010

35th International Conference on Infrared, Millimeter, and Terahertz Waves

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“…But this competes with the fact that ͉E sam ͉͑͒ϰexp͑−l͒ and thus increasing l will lower the amplitude of a sample signal and lift the overall variance. A treatment of the thickness-amplitude tradeoff can be found in [20]. Equation (7) combines the effects from both the reference and sample signals.…”

Section: A Random and Systematic Errors In T-ray Amplitudementioning

confidence: 99%

“…A benefit of the proposed model is that it enables analytical optimization and sensitivity analysis for some measurement parameters, which often results in reduction of the measurement uncertainty. As an example, the optimization of a sample's thickness is determined based on this analysis and will be published elsewhere [20].…”

Section: Conclusion and Potential Extensionsmentioning

confidence: 99%

Uncertainty in terahertz time-domain spectroscopy measurement

et al. 2008

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“…In Ref. [41], authors aim to find the best thickness in order to minimize the standard deviations ( Eq. (12) shows that n(ω) and k(ω) are affected by some indetermination as consequence of the fixed extension of the sample.…”

Section: Thz Spectroscopymentioning

confidence: 99%

THz Measurement Systems

Angrisani¹,

Cavallo²,

Liccardo³

et al. 2016

New Trends and Developments in Metrology

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The terahertz (THz) frequency region is often defined as the last unexplored area of the electromagnetic spectrum. Over the past few years, the full access has been the objective of intense research efforts. Progress in this area has played an important role in opening up the possibility of using THz electromagnetic radiation (T-waves) in science and in realworld applications. T-waves are not perceptible by the human eye, are not ionizing, and have the ability to cross many non-conducting materials such as paper, fabrics, wood, plastic, and organic tissues. Moreover, the use of THz radiation allows non-destructive analysis of the materials under investigation both by study of their "fingerprint" via spectroscopic measurements and by high-resolution spatial imaging operations, exploiting the see-through capability of T-waves. Such technology can be applied in diverse areas, spanning from biology to chemical, pharmaceutical, environmental sciences, etc. In this chapter, we will present the typical architecture of measurement systems based on the THz technology, detailing what are the parameters that define their performance, the measurement methods, and the related errors and uncertainty, and focusing at the end on the use of time-domain spectroscopy for the evaluation of different material properties in this specific frequency region.

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Material thickness optimization for transmission-mode terahertz time-domain spectroscopy

Cited by 86 publications

References 27 publications

THz-TDS of filter paper at differing humidities

THz-TDS of filter paper at differing humidities

Uncertainty in terahertz time-domain spectroscopy measurement

THz Measurement Systems

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