Výsledky vyhledávání - "V. Podlipnov"

Akademický článek

Neural network-aided classification of hyperspectral vegetation images with a training sample generated using an adaptive vegetation index

Autor: N. Firsov, V. Podlipnov, N. Ivliev, P. Nikolaev, S. Mashkov, P. Ishkin, R. Skidanov, A. Nikonorov

Publikováno v: Компьютерная оптика, Vol 45, Iss 6, Pp 887-896 (2021)

In this paper, we propose an approach to the classification of high-resolution hyperspectral images in the applied problem of identification of vegetation types. A modified spectral-spatial convolutional neural network with compensation for illuminat

Externí odkaz: https://doaj.org/article/f13e1e20a0684ea4ac682e6c9cd37c97

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Akademický článek

Robust Demultiplexing of Distinct Orbital Angular Momentum Infrared Vortex Beams Into Different Spatial Geometry Over a Broad Spectral Range

Autor: Andra Naresh Kumar Reddy, Vijayakumar Anand, Svetlana Nikolaevna Khonina, Vladimir V. Podlipnov, Saulius Juodkazis

Publikováno v: IEEE Access, Vol 9, Pp 143341-143348 (2021)

Multi-channel structured light with orbital angular momentum (OAM) can be applied in different applications. For example, OAM modulation and OAM multiplexing in fiber optics communications, high-dimensional quantum cryptography-based OAM states for t

Externí odkaz: https://doaj.org/article/3b283cf9a57b4d7582a301c81e5619c7

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Akademický článek

Design of Multi-Wavelength Diffractive Lenses Focusing Radiation of Different Wavelengths to Different Points

Autor: Leonid L. Doskolovich, Roman V. Skidanov, Veronika A. Blank, Sofiya V. Ganchevskaya, Vladimir V. Podlipnov, Dmitry A. Bykov, Nikita V. Golovastikov, Evgeni A. Bezus

Publikováno v: Photonics, Vol 9, Iss 10, p 785 (2022)

We propose a method for calculating the so-called multi-wavelength diffractive lenses (MWDLs) intended for separating and focusing the radiation of L given wavelengths to L given points located in a certain plane perpendicular to the optical axis. Th

Externí odkaz: https://doaj.org/article/7ec05bfebc22464b85048780205e2599

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Akademický článek

Refractive Bi-Conic Axicon (Volcone) for Polarization Conversion of Monochromatic Radiation

Autor: Sergey A. Degtyarev, Sergey V. Karpeev, Nikolay A. Ivliev, Yuriy S. Strelkov, Vladimir V. Podlipnov, Svetlana N. Khonina

Publikováno v: Photonics, Vol 9, Iss 6, p 421 (2022)

A new element is proposed for producing an azimuthally polarized beam with a vortex phase dependence. The element is formed by two conical surfaces in such a way that the optical element resembles a mountain with a crater on top, like a volcano (volc

Externí odkaz: https://doaj.org/article/724d924af4c2486784c24dfbbd587b1b

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Akademický článek

Free-Space Transmission and Detection of Variously Polarized Near-IR Beams Using Standard Communication Systems with Embedded Singular Phase Structures

Autor: Sergey V. Karpeev, Vladimir V. Podlipnov, Svetlana N. Khonina, Nikolay A. Ivliev, Sofia V. Ganchevskay

Publikováno v: Sensors, Vol 22, Iss 3, p 890 (2022)

We propose to achieve multichannel information transmission in free space by means of variously polarized beams. The interaction of vortex beams of various orders with the main polarization states is theoretically analyzed. The passage of beams with

Externí odkaz: https://doaj.org/article/f225d9d949f44cee8f44b9147d7383e5

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