VESTNIK of Samara University. Aerospace and Mechanical EngineeringVESTNIK of Samara University. Aerospace and Mechanical Engineering2542-04532541-7533Samara National Research University227710.18287/2541-7533-2012-0-4(35)-229-239UnknownComparative analysis of parabolic lens and axicon in geometric and scalar paraxial optical modelsUstinovA.V.<p>Post-graduate Student of the Department of Technical Cybernetics</p>andr@smr.ruKarsakovA. V.<p>Undergraduate Student</p>karsakv.aleksejj@rambler.ruKhoninaS. N.<p>Doctor of Science</p>
<p>Professor of the Department of Technical Cybernetics</p>khonina@smr.ruSamara State Aerospace University181220121142292390203201502032015Copyright © 2015, VESTNIK of the Samara State Aerospace University2015<p>Accurate analytical expressions are deduced in the framework of a scalar paraxial wave model for thedistribution of complex intensity along the optical axis of a parabolic lens and that of an axicon. The expressionsare analyzed and compared with the results of ray-optical approximation. Increasing the intensity in the lens focusby increasing its radius is shown to be impossible, whereas it is possible in the case of an axicon.</p>Parabolic lensaxiconparaxial approximationdistribution along optical axisПараболическая линзааксиконпараксиальное приближениераспределение вдоль оптической оси