| 000 | 02995nlm1a2200457 4500 | ||
|---|---|---|---|
| 001 | 668050 | ||
| 005 | 20231030042136.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\39274 | ||
| 035 | _aRU\TPU\network\37602 | ||
| 090 | _a668050 | ||
| 100 | _a20220602a2022 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aCH | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aDevelopment of Singular Points in a Beam Passed Phase Screen Simulating Atmospheric Turbulence and Precision of Such a Screen Approximation by Zernike Polynomials _fF. Yu. Kanev, N. A. Makenova, I. D. Veretekhin |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 18 tit.] | ||
| 330 | _aThis 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. | ||
| 461 | _tPhotonics | ||
| 463 |
_tVol. 9, iss. 56 _v[285, 14 p.] _d2022 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aadaptive optics | |
| 610 | 1 | _aatmospheric turbulence | |
| 610 | 1 | _aoptical vortices | |
| 610 | 1 | _aZernike polynomials | |
| 610 | 1 | _aадаптивная оптика | |
| 610 | 1 | _aатмосферная турбулентность | |
| 610 | 1 | _aоптические вихри | |
| 610 | 1 | _aполиномы Цернике | |
| 700 | 1 |
_aKanev _bF. Yu. _cspecialist in electrical engineering _cAssociate Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences _f1960- _gFedor Yurievich _2stltpush _3(RuTPU)RU\TPU\pers\33711 |
|
| 701 | 1 |
_aMakenova _bN. A. _cphysicist _cAssociate Professor of Tomsk Polytechnic University, Candidate of physical and mathematical sciences _f1974- _gNailya Altynkhanovna _2stltpush _3(RuTPU)RU\TPU\pers\33712 |
|
| 701 | 1 |
_aVeretekhin _bI. D. _gIgor Dmitrievich |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИнженерная школа энергетики _bОтделение электроэнергетики и электротехники _h8022 _2stltpush _3(RuTPU)RU\TPU\col\23505 |
| 801 | 2 |
_aRU _b63413507 _c20221026 _gRCR |
|
| 856 | 4 | _uhttp://earchive.tpu.ru/handle/11683/73249 | |
| 856 | 4 | _uhttps://doi.org/10.3390/photonics9050285 | |
| 942 | _cCF | ||