Localization of optical vortices and reconstruction of wavefront with screw dislocations

Abstract

A new algorithm of the dislocation localization is suggested. It is based on the analysis of projections field of phase gradients. Accuracy of the algorithm is verified by numerical simulation. Special attention is focused on the precision of singular points (wavefront dislocations) screening. The algorithm is evaluated with respect to others and its advantages and drawbacks are cleared up. The method described can be included in the software of the Hartmann's sensor and be used in the full-scale experiments. Also the original algorithm of phase reconstruction is proposed and its characteristics are estimated. This algorithm requires detection of dislocation coordinates so it should be used together with the algorithm of dislocation localization. In the paper the comparison is performed of the proposed algorithm with the well known Fried's algorithm. After that the phase reconstruction technique is included into the model of a typical adaptive optics system.

Original language	English
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
Editors	M.T. Gruneisen, J.D. Gonglewski, M.K. Giles
Pages	1-11
Number of pages	11
Volume	5894
DOIs	https://doi.org/10.1117/12.622658
Publication status	Published - 2005
Event	Advanced Wavefront Control: Methods, Devices, and Applications III - San Diego, CA, United States Duration: 31 Jul 2005 → 2 Aug 2005

Other

Other	Advanced Wavefront Control: Methods, Devices, and Applications III
Country	United States
City	San Diego, CA
Period	31.7.05 → 2.8.05

Keywords

Detection of singular point positions
Optical vortices
Phase reconstruction
Singular optics
Singular points
Wave-front dislocations

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics

Access to Document

10.1117/12.622658

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Localization of optical vortices and reconstruction of wavefront with screw dislocations. / Aksenov, Valerii P.; Izmailov, Igor V.; Kanev, Feodor Yu; Starikov, Feodor A.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / M.T. Gruneisen; J.D. Gonglewski; M.K. Giles. Vol. 5894 2005. p. 1-11 589407.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Aksenov, VP, Izmailov, IV, Kanev, FY & Starikov, FA 2005, Localization of optical vortices and reconstruction of wavefront with screw dislocations. in MT Gruneisen, JD Gonglewski & MK Giles (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5894, 589407, pp. 1-11, Advanced Wavefront Control: Methods, Devices, and Applications III, San Diego, CA, United States, 31.7.05. https://doi.org/10.1117/12.622658

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abstract = "A new algorithm of the dislocation localization is suggested. It is based on the analysis of projections field of phase gradients. Accuracy of the algorithm is verified by numerical simulation. Special attention is focused on the precision of singular points (wavefront dislocations) screening. The algorithm is evaluated with respect to others and its advantages and drawbacks are cleared up. The method described can be included in the software of the Hartmann's sensor and be used in the full-scale experiments. Also the original algorithm of phase reconstruction is proposed and its characteristics are estimated. This algorithm requires detection of dislocation coordinates so it should be used together with the algorithm of dislocation localization. In the paper the comparison is performed of the proposed algorithm with the well known Fried's algorithm. After that the phase reconstruction technique is included into the model of a typical adaptive optics system.",

keywords = "Detection of singular point positions, Optical vortices, Phase reconstruction, Singular optics, Singular points, Wave-front dislocations",

author = "Aksenov, {Valerii P.} and Izmailov, {Igor V.} and Kanev, {Feodor Yu} and Starikov, {Feodor A.}",

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PY - 2005

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KW - Phase reconstruction

KW - Singular optics

KW - Singular points

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