Development of Singular Points in a Beam Passed Phase Screen Simulating Atmospheric Turbulence and Precision of Such a Screen Approximation by Zernike Polynomials; Photonics; Vol. 9, iss. 56

Development of Singular Points in a Beam Passed Phase Screen Simulating Atmospheric Turbulence and Precision of Such a Screen Approximation by Zernike Polynomials; Photonics; Vol. 9, iss. 56

Bibliografiska uppgifter
Parent link:	Photonics Vol. 9, iss. 56.— 2022.— [285, 14 p.]
Huvudupphovsman:	Kanev F. Yu. Fedor Yurievich
Institutionell upphovsman:	Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Отделение электроэнергетики и электротехники
Övriga upphovsmän:	Makenova N. A. Nailya Altynkhanovna, Veretekhin I. D. Igor Dmitrievich
Sammanfattning:	Title screen This article addresses two issues. Firstly, it was shown that if the initial phase of a Gaussian beam is specified by the sum of Zernike polynomials or by a screen simulating atmospheric turbulence, in the process of propagation, singular points appear in the wavefront of such a beam. With the use of numerical simulation, the dependence of the vortices number on the distortion characteristics and on the distance traveled by the beam was determined. The second problem analyzed in the article is the problem of a phase screen approximation by a series formed by Zernike polynomials. The carried out numerical experiments made it possible to determine the dependence of approximation accuracy on the screen parameters and on the number of polynomials entering the basis of approximation.
Språk:	engelska
Publicerad:	2022
Ämnen:	электронный ресурс труды учёных ТПУ adaptive optics atmospheric turbulence optical vortices Zernike polynomials адаптивная оптика атмосферная турбулентность оптические вихри полиномы Цернике
Länkar:	http://earchive.tpu.ru/handle/11683/73249 https://doi.org/10.3390/photonics9050285
Materialtyp:	Elektronisk Bokavsnitt
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668050

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