Application of Terahertz Pulse Time-Domain Holography for Phase Imaging

Petrov, Nikolay V., Kulya, Maxim S., Tsypkin, Anton N., Bespalov, Victor G. and Gorodetsky, Andrei (2016). Application of Terahertz Pulse Time-Domain Holography for Phase Imaging. IEEE Transactions on Terahertz Science and Technology, 6 (3), pp. 464-472.

Abstract

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.

Publication DOI: https://doi.org/10.1109/TTHZ.2016.2530938
Divisions: Engineering & Applied Sciences > Aston Institute of Photonics Technology
Additional Information: This is an open access article freely available on the journal's website https://ieeexplore.ieee.org/document/7447823/
Uncontrolled Keywords: Inverse diffraction problem,noise,nondestructive testing,phase retrieval, terahertz holography,terahertz imaging,terahertz radiation
Full Text Link:
Related URLs: https://ieeexpl ... cument/7447823/ (Publisher URL)
Published Date: 2016-05-01
Authors: Petrov, Nikolay V.
Kulya, Maxim S.
Tsypkin, Anton N.
Bespalov, Victor G.
Gorodetsky, Andrei ( 0000-0001-5440-2185)

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