The features of optimization of a phase retrieval technique in THz frequency range

Nikolay V. Petrov; Anton N Galiaskarov; Tatiana Yu. Nikolaeva; Victor G. Bespalov

doi:10.1117/12.978688

11 September 2012 The features of optimization of a phase retrieval technique in THz frequency range

Nikolay V. Petrov, Anton N Galiaskarov, Tatiana Yu. Nikolaeva, Victor G. Bespalov

Proceedings Volume 8413, Speckle 2012: V International Conference on Speckle Metrology; 84131T (2012) https://doi.org/10.1117/12.978688
Event: SPECKLE 2012: V International Conference on Speckle Metrology, 2012, Vigo, Spain

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.

Citation Download Citation

Nikolay V. Petrov, Anton N Galiaskarov, Tatiana Yu. Nikolaeva, and Victor G. Bespalov "The features of optimization of a phase retrieval technique in THz frequency range", Proc. SPIE 8413, Speckle 2012: V International Conference on Speckle Metrology, 84131T (11 September 2012); https://doi.org/10.1117/12.978688

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