Application of Terahertz Pulse Time-Domain Holography for Phase Imaging


Terahertz pulse time-domain holography (THz PTDH) is the powerful technique for high-resolution amplitude and phase THz imaging that allows mapping spectroscopic information across the imaged object. In this paper, we consider most sought after applications of phase imaging provided by this technique and experimentally demonstrate the ability of the method to reconstruct smooth and stepped relief features of an object that is transparent in THz region. Unlike the amplitude distribution, which does not contain any significant information in this case, phase distribution not only reveals the object qualitatively,but also allows the reconstruction of the object thicknessespattern, even in low signal-to-noise registration conditions. Mainlimitations of the proposed method, such as transverse resolutionand low signal-to-noise environment are carefully studied and mitigated.

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Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: This is an open access article freely available on the journal's website
Uncontrolled Keywords: Inverse diffraction problem,noise,nondestructive testing,phase retrieval, terahertz holography,terahertz imaging,terahertz radiation
Publication ISSN: 2156-3446
Last Modified: 27 Jun 2024 09:14
Date Deposited: 09 Feb 2018 14:55
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Related URLs: https://ieeexpl ... cument/7447823/ (Publisher URL)
PURE Output Type: Article
Published Date: 2016-05-01
Accepted Date: 2016-02-03
Authors: Petrov, Nikolay V.
Kulya, Maxim S.
Tsypkin, Anton N.
Bespalov, Victor G.
Gorodetsky, Andrei (ORCID Profile 0000-0001-5440-2185)



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