Screening of singular points of vector field of phase gradient, localization of optical vortices and reconstruction of wavefront with screw dislocations

Valerii P. Aksenov, Igor V. Izmailov, Feodor Yu Kanev, Feodor A. Starikov

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Аннотация

The algorithms for screening singular points of the phase gradient vector field are developed, where vector field components can be measured with a Shack-Hartmann wavefront sensor or shearing interferometer. Special attention is focused on the singular points that allow localization of optical vortices (wavefront dislocations). Determination of the coordinates and the topological vortex charges is of special importance in optical vortex interferometry, in operation of optical communication devices that encode information by means of optical vortices, and for reconstruction of phase distribution of optical beams that propagate in a medium with dislocations. On basis of numerical modeling, accuracy of the algorithm is verified, comparison with other algorithms executed, and its advantages and drawbacks are analyzed. Performance results are presented of the singular wavefront recovery algorithm, whose operating requirement is preliminary detection of optical vortex dislocations.

Язык оригиналаАнглийский
Название основной публикацииProceedings of SPIE - The International Society for Optical Engineering
РедакторыV.Y. Panchenko, V.S. Golubev
Том6162
DOI
СостояниеОпубликовано - 2006
СобытиеInternational Conference on Lasers, Applications, and Technologies 2005 - Laser Sensing, Imaging and Information Technologies - St. Petersburg, Российская Федерация
Продолжительность: 11 мая 200515 мая 2005

Другое

ДругоеInternational Conference on Lasers, Applications, and Technologies 2005 - Laser Sensing, Imaging and Information Technologies
СтранаРоссийская Федерация
ГородSt. Petersburg
Период11.5.0515.5.05

    Fingerprint

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Цитировать

Aksenov, V. P., Izmailov, I. V., Kanev, F. Y., & Starikov, F. A. (2006). Screening of singular points of vector field of phase gradient, localization of optical vortices and reconstruction of wavefront with screw dislocations. В V. Y. Panchenko, & V. S. Golubev (Ред.), Proceedings of SPIE - The International Society for Optical Engineering (Том 6162). [61620D] https://doi.org/10.1117/12.674988