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Articles by Andrey V. Ustinov
Interference Generation of a Reverse Energy Flow with Varying Orbital and Spin Angular Momentum Density
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Photonics | Free Full-Text | Analysis of the Polarization Distribution and Spin Angular Momentum of the Interference Field Obtained by Co-Planar Beams with Linear and Circular Polarization
All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.
Generation of Light Fields with Controlled Non-Uniform Elliptical Polarization When Focusing on Structured Laser Beams
Open AccessArticle by 1,2, 1 and 1,2,* 1 Image Processing Systems Institute of RAS—Branch of the FSRC “Crystallography and Photonics” RAS, Samara 443001, Russia 2 Scientific Research Laboratory of automated systems of scientific research (SRL-35), Samara National Research University, Samara 443086, Russia * Author to whom correspondence should be addressed.
Simple Method of Light Field Calculation for Shaping of 3D Light Curves
Open AccessArticle by 1,2, 1,2, 2, 2 and 1,2,* 1 Scientific Research Laboratory of Automated Systems of Scientific Research, Samara National Research University, Samara 443086, Russia 2 Image Processing Systems Institute of RAS—Branch of the FSRC “Crystallography and Photonics” RAS, Samara 443001, Russia * Author to whom correspondence should be addressed.
Optical Bottle Shaping Using Axicons with Amplitude or Phase Apodization
Open AccessArticle by Svetlana N. Khonina 1,2,*, Andrey V. Ustinov 2, Sergey I. Kharitonov 1,2, Sergey A. Fomchenkov 1,2 and Alexey P. Porfirev 1,2 1 Samara National Research University, Samara 443086, Russia 2 Image Processing Systems Institute of RAS—Branch of the FSRC “Crystallography and Photonics” RAS, Samara 443001, Russia * Author to whom correspondence should be addressed.
Diatom optical element: a quantized version of the generalized spiral lens
Abstract Here we introduce a diatom optical element—a special case of the generalized spiral lens widely used for generation of light fields with orbital angular momentum. The profile of such an element is visually similar to the structure of a diatom. In contrast to currently existing special cases (axicon, parabolic lens, or autofocusing optical element) of a generalized spiral lens, diatom optical elements shape light fields with an intensity distribution that is neither a spiral nor a ring.
Influence of optical forces induced by paraxial vortex Gaussian beams on the formation of a microrelief on carbazole-containing azopolymer films
Abstract The paper discusses photoinduced microrelief formation in a film of an azopolymer. A theoretical study of the effect of laser beam polarization on the balance of optical forces acting under the direct action of paraxial Gaussian beams on the irradiated substance was made. We show that taking into account the gradient and scattering components of the force does not allow us to correctly describe the shape of the microasperities obtained on a carbazole-containing azopolymer.
Vector Lissajous laser beams
Abstract We consider a new type of vector beam, the vector Lissajous beams (VLB), which is of double order $(p,q)$ and a generalization of cylindrical vector beams characterized by single-order $p$. The transverse components of VLBs have an angular relationship corresponding to Lissajous curves.
Binary multi-order diffraction optical elements with variable fill factor for the formation and detection of optical vortices of arbitrary order
Abstract In this paper we consider the calculation of binary diffraction optical elements (DOEs) for the formation and detection of optical vortices of arbitrary order. The synthesis of binary DOEs is based on a combination of the method of carrier spatial frequencies and binary coding with a variable fill factor. Unlike various methods of multiplication, the method of carrier spatial frequencies is characterized by great flexibility and versatility.
Increased reverse energy flux area when focusing a linearly polarized annular beam with binary plates
Abstract We suggest an annular field with linear polarization and a binary sectored phase for the formation of the inverse energy flux with an increased area of action. The possibility of the formation of a reverse energy flux over large areas in the focal domain at tight focusing of a linearly polarized field with the binary phase is shown theoretically and numerically. Moreover, the area increases with the number m.
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