Propagation and Transformation of Vortexes in Linear and Nonlinear Radio-Photon Systems
The article is devoted to issues related to the propagation and transformation of vortexes in the optical range of frequency. Within the framework of the traditional and modified model of slowly varying envelope approximation (SVEA), the process of converting vortex beams of the optical domain into...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Fibers |
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| Online Access: | https://www.mdpi.com/2079-6439/10/1/4 |
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| author | Valery H. Bagmanov Albert Kh. Sultanov Ivan K. Meshkov Azat R. Gizatulin Raoul R. Nigmatullin Airat Zh. Sakhabutdinov |
| author_facet | Valery H. Bagmanov Albert Kh. Sultanov Ivan K. Meshkov Azat R. Gizatulin Raoul R. Nigmatullin Airat Zh. Sakhabutdinov |
| author_sort | Valery H. Bagmanov |
| collection | DOAJ |
| description | The article is devoted to issues related to the propagation and transformation of vortexes in the optical range of frequency. Within the framework of the traditional and modified model of slowly varying envelope approximation (SVEA), the process of converting vortex beams of the optical domain into vortex beams of the terahertz radio range based on nonlinear generation of a difference frequency in a medium with a second-order susceptibility is considered. The modified SVEA splits a slowly varying amplitude into two factors, which makes it possible to more accurately describe the three-wave mixing process. The theoretical substantiation of the rule of vortex beams topological charges conversion is given—the topological charge of the output radio-vortex beam is equal to the difference between the topological charges of the input optical vortex beams. A numerical simulation model of the processes under consideration has been implemented and analyzed. |
| first_indexed | 2024-03-10T01:30:34Z |
| format | Article |
| id | doaj.art-56e21f06f2cf44e09683019c475acddb |
| institution | Directory Open Access Journal |
| issn | 2079-6439 |
| language | English |
| last_indexed | 2024-03-10T01:30:34Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fibers |
| spelling | doaj.art-56e21f06f2cf44e09683019c475acddb2023-11-23T13:43:24ZengMDPI AGFibers2079-64392022-01-01101410.3390/fib10010004Propagation and Transformation of Vortexes in Linear and Nonlinear Radio-Photon SystemsValery H. Bagmanov0Albert Kh. Sultanov1Ivan K. Meshkov2Azat R. Gizatulin3Raoul R. Nigmatullin4Airat Zh. Sakhabutdinov5Department of Telecommunication Systems, Ufa State Aviation Technical University, 450000 Ufa, RussiaDepartment of Telecommunication Systems, Ufa State Aviation Technical University, 450000 Ufa, RussiaDepartment of Telecommunication Systems, Ufa State Aviation Technical University, 450000 Ufa, RussiaDepartment of Telecommunication Systems, Ufa State Aviation Technical University, 450000 Ufa, RussiaDepartment of Radio-Electronic and Information-Measuring Tools, Kazan National Research Technical University Named after A.N. Tupolev-KAI, K. Marx Str. 10, 420111 Kazan, RussiaDepartment of Radiophotonics and Microwave Technologies, Kazan National Research Technical University Named after A.N. Tupolev-KAI, K. Marx Str. 10, 420111 Kazan, RussiaThe article is devoted to issues related to the propagation and transformation of vortexes in the optical range of frequency. Within the framework of the traditional and modified model of slowly varying envelope approximation (SVEA), the process of converting vortex beams of the optical domain into vortex beams of the terahertz radio range based on nonlinear generation of a difference frequency in a medium with a second-order susceptibility is considered. The modified SVEA splits a slowly varying amplitude into two factors, which makes it possible to more accurately describe the three-wave mixing process. The theoretical substantiation of the rule of vortex beams topological charges conversion is given—the topological charge of the output radio-vortex beam is equal to the difference between the topological charges of the input optical vortex beams. A numerical simulation model of the processes under consideration has been implemented and analyzed.https://www.mdpi.com/2079-6439/10/1/4vortex propagationdifference frequency generationnonlinear mediumvortex beams conversion |
| spellingShingle | Valery H. Bagmanov Albert Kh. Sultanov Ivan K. Meshkov Azat R. Gizatulin Raoul R. Nigmatullin Airat Zh. Sakhabutdinov Propagation and Transformation of Vortexes in Linear and Nonlinear Radio-Photon Systems Fibers vortex propagation difference frequency generation nonlinear medium vortex beams conversion |
| title | Propagation and Transformation of Vortexes in Linear and Nonlinear Radio-Photon Systems |
| title_full | Propagation and Transformation of Vortexes in Linear and Nonlinear Radio-Photon Systems |
| title_fullStr | Propagation and Transformation of Vortexes in Linear and Nonlinear Radio-Photon Systems |
| title_full_unstemmed | Propagation and Transformation of Vortexes in Linear and Nonlinear Radio-Photon Systems |
| title_short | Propagation and Transformation of Vortexes in Linear and Nonlinear Radio-Photon Systems |
| title_sort | propagation and transformation of vortexes in linear and nonlinear radio photon systems |
| topic | vortex propagation difference frequency generation nonlinear medium vortex beams conversion |
| url | https://www.mdpi.com/2079-6439/10/1/4 |
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