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Proceedings Paper

The features of optimization of a phase retrieval technique in THz frequency range
Author(s): Nikolay V. Petrov; Anton N Galiaskarov; Tatiana Yu. Nikolaeva; Victor G. Bespalov
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Paper Abstract

In this paper, the results of using the method of angular spectrum of plane waves as a mathematical model of the iterative algorithm for phase retrieval based on the intensity distributions formed by the radiation of THz frequency range are presented. This mathematical model is designed to calculate the wave field propagation in the near-field diffraction, and in comparison with the Fresnel transform is more effective when working with the THz radiation. The criterion for selection of registration planes which provides the best quality of wave field reconstruction was determined as a result of studying the characteristics of the longitudinal intensity distributions.

Paper Details

Date Published: 11 September 2012
PDF: 5 pages
Proc. SPIE 8413, Speckle 2012: V International Conference on Speckle Metrology, 84131T (11 September 2012); doi: 10.1117/12.978688
Show Author Affiliations
Nikolay V. Petrov, National Research Univ. of Information Technologies, Mechanics and Optics (Russian Federation)
Anton N Galiaskarov, National Research Univ. of Information Technologies, Mechanics and Optics (Russian Federation)
Tatiana Yu. Nikolaeva, National Research Univ. of Information Technologies, Mechanics and Optics (Russian Federation)
Victor G. Bespalov, National Research Univ. of Information Technologies, Mechanics and Optics (Russian Federation)


Published in SPIE Proceedings Vol. 8413:
Speckle 2012: V International Conference on Speckle Metrology
Ángel Fernandez Doval; Cristina Trillo, Editor(s)

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