Deviation of optical constants extracted in terahertz transmission spectroscopy
Abstract
We present a simulation with a Lorentz oscillator model to evaluate the accuracy of the extracted optical constants in terahertz transmission spectroscopy. The contributions of various error sources including the deflection of the incident angle, the delay-line timing error, and two other kinds of noises are analyzed. It is revealed that the influence of the deflection angle is an approximate parabolic dependence. The delay-line timing uncertainty introduces an exponential frequency dependence in the deviation of the extinction coefficient and a distinct change in the refractive index data in the resonant region. When background and 1/f noises are introduced, the deviation mainly concentrates in the resonant region.
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Jitter noise has an equally significant impact on the attainable SNR level.
“In this section, we are going to discuss the effect of jitter noise, which has an equally significant impact on the attainable SNR level [25, 29, 32, 33].”
From Terahertz-time domain spectrometer with 90 dB peak dynamic range (2014) · cites this paper as [32]
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References 22 · Cited by 12
- Authors
- Xu, X., Wang, X., & Wang, L.
- Affiliations
- Chinese Academy of Sciences (CN)
- Venue
- Applied Optics
- Publisher
- Optica Publishing Group
- Published
- 2006-02-01
- Volume
- 45
- Issue
- 4
- Pages
- 648
- ISSN
- 0003-6935 (ISSN-L)
- 1539-4522
- OpenAlex
- W2063882482
- Cited by
- 12
- References
- 22
- Citations by year
- 2025: 1 · 2021: 1 · 2018: 1 · 2017: 1 · 2016: 1 · 2015: 1 · 2014: 2 · 2013: 1 · 2012: 1
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Applied Optics (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Terahertz technology and applications
- Physical Sciences › Chemistry › Spectroscopy › Spectroscopy and Laser Applications
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Microwave and Dielectric Measurement Techniques
- Keywords
- terahertz transmission spectroscopy, Lorentz model, error analysis, extinction coefficient, refractive index, 1/f noise, background noise
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