CoChat
Sign Up
Cited by 11Terahertz technology and applicationsSpectroscopy and Laser ApplicationsMicrowave and Dielectric Measurement Techniques

Scattering Effects in Terahertz Wave Spectroscopy of Granulated Solids

Kornienko, Vladimir V., Akhmedzhanov, Rinat A., Ilyakov, Igor E., Mishin, Alexey D., Prudkovskii, Pavel A., Samotokhin, Oleg V., Shishkin, Boris V., Kitaeva, Galiya Kh.·2015·IEEE Transactions on Terahertz Science and Technology
DOI 10.1109/tthz.2015.2440104
Open this paper in CoChat — free account

Abstract

Applications of terahertz spectroscopy methods to granulated solids are substantially constrained by the effects of scattering of the incident terahertz waves by spatial heterogeneities of a sample. The experimental results obtained by means of terahertz time-domain spectroscopy are reported for the samples of granulated 2, 4-dinitrotoluene and alpha-lactose without any special filling. We show that in samples of the same substance, but prepared in a different manner, the overall increase of the background extinction with frequency and appearance of additional extinction maxima can obscure the true absorption features of the material. In samples with large grain size, of order of 400 μm, a complicated irregular spectral structure is observed instead of a fingerprint maxima at 1.37 THz for alpha-lactose and at 1.08 THz for 2,4-dinitrotoluene. At higher frequencies no true spectral fingerprints are clearly seen in the raw experimental spectra of all the samples with the grain sizes of 130 μm and more. The influence of grain size, air-filling factor and the dispersion properties of the materials is studied. Theoretical analysis is made with the use of Mie theory in simplifying approximations and taking into account interference between the waves transmitted through a porous sample. It has been shown that the scattering-induced masking effects can be properly simulated even for the air-filled objects with initially unknown spatial and dispersion parameters. The procedure of eliminating the influence of scattering effects from the raw spectral data is proposed. Detection of true high-frequency spectral fingerprints is demonstrated using this procedure for various grain sizes up to 400 μm.

Integrity signals

Registry

Crossref · 10.1109/tthz.2015.2440104

Cites

23 of 23 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The size of microspheres (or pores) plays a crucial role in the presence of anomalous spectral features.

    “Importantly, it has been shown that the size of microspheres (or pores) plays a crucial role in the presence of anomalous spectral features [9], [11].”

    From Unveiling the Origin of Spurious Features in THz-TDS of Powder Compacts (2025) · cites this paper as [11]

  • A study has recently suggested a curve-fitting equation to distinguish the absorption behavior of the material from scattering-induced effects in heterogeneous and scattering specimens.

    “A study has recently suggested a curve-fitting equation to distinguish the absorption behavior of the material from scattering-induced effects in heterogeneous and scattering specimens [12].”

    From Influence of Particle Size on Optical Constants From Pellets Measured With Terahertz Pulsed Spectroscopy (2016) · cites this paper as [12]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Related

Authors
Kornienko, V. V., Akhmedzhanov, R. A., Ilyakov, I. E., Mishin, A. D., Prudkovskii, P. A., Samotokhin, O. V., Shishkin, B. V., & Kitaeva, G. K.
Affiliations
  • Lomonosov Moscow State University (RU)
  • Institute of Applied Physics (RU)
ORCID
Venue
IEEE Transactions on Terahertz Science and Technology
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Published
2015-07
Volume
5
Issue
4
Pages
665-672
ISSN
  • 2156-342X (ISSN-L)
  • 2156-3446
DOI
10.1109/tthz.2015.2440104
OpenAlex
W1552235891
Cited by
11
References
23
Citations by year
2026: 1 · 2025: 2 · 2020: 2 · 2019: 3 · 2017: 1 · 2016: 2
FWCI
0.48
Type
journal article
Language
en
Open access
closed
Licence
ieeexplore.ieee.org/Xplorehelp/downloads/license-information/IEEE.html (vor)
Locations
IEEE Transactions on Terahertz Science and Technology (publishedVersion)
Funders
D. Mendeleev University of Chemical Technology of Russia
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 spectroscopy, wave scattering, 2,4-dinitrotoluene, alpha-lactose, grain size effects, Mie theory, porous media, spectral deconvolution

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review