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Факультет / Институт : Mühendislik Fakültes ... ✕Ученые : Mirbek TURDUEV ✕
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Prof. Dr. Mirbek TURDUEVMühendislik Fakültesi
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Machine learning enabled the design of compact and efficient wavelength demultiplexing photonic devices

Mirbek TURDUEV

In this paper, we introduce the design approach of integrated photonic devices by employing reinforcement learning known as attractor selection (AttSel). Here, we combined 3D FDTD with AttSel algorithm, which is based on artificial neural networks, to achieve ultra-compact and highly efficient wavelength demultiplexers with low crosstalk such as. The presented devices consist of SOI materials, which are compatible with complementary MOS technology. Consequently, the reinforcement learning is successfully applied to design smaller and superior integrated photonic devices. Keyword: inverse desig ...Более

Доклады конференции 2023 Mühendislik Fakültesi 2023 IEEE Photonics Conference (IPC) 18 Просмотры
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Optimal Design of Omni-directional Optical Cloaking by Annular Sectorized Unit-cells

Mirbek TURDUEV

In this manuscript, we demonstrate the design and experimental proof of an optical cloaking structure which multi-directionally conceals a perfectly electric conductor (PEC) object from an incident plane wave. The dielectric modulation around the highly reflective scattering PEC object is determined by an optimization process for multi-directional cloaking purposes. Keyword: component; formatting; insert; style; styling

Доклады конференции 2023 Mühendislik Fakültesi 2023 IEEE Photonics Conference (IPC) 13 Просмотры
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Enhanced self-collimation effect by low rotational symmetry in hexagonal lattice photonic crystals

Mirbek TURDUEV

In this study, we present the design of a photonic crystal (PC) structure with a hexagonal lattice, where adjustments to the PC unit cell symmetry reveal an all-angle self-collimation (SC) effect. By optimizing opto-geometric parameters, such as the rotational angle of auxiliary rods and adjacent distances, we analyze the SC property in detail, leveraging group velocity dispersion (GVD) and third-order dispersion (TOD) characteristics. We also investigate the relationship between symmetry properties and their influence on dispersion characteristics. Through symmetry manipulation, we gain a com ...Более

Статья 2024 Mühendislik Fakültesi Physica Scripta99 ( 6 ) 3 Просмотры
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Inverse design of ultra-compact photonic gates for all-optical logic operations

Mirbek TURDUEV

Logic gates have great importance in realization of rapid data transmission as well as low loss transfers. In this paper, a multi-objective inverse-design approach is implemented by using objective-first algorithm to design optical AND, OR, NAND and NOT logic gates on Si-platform at the design wavelength of 1.30 mu m. For all gates, the design area is fixed to 2.24 mu m x 2.24 mu m. The optical logic '1' output is accepted to be optical power values greater than 0.8 times of the input optical power. By implementing a Bias waveguide as well as two input ports, we made it possible to achieve log ...Более

Статья 2022 Mühendislik Fakültesi Journal of Physics D: Applied Physics55 ( 21 ) 76 Просмотры
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Multi-Directional Cloak Design by All-Dielectric Unit-Cell Optimized Structure

Mirbek TURDUEV

In this manuscript, we demonstrate the design and experimental proof of an optical cloaking structure that multi-directionally conceals a perfectly electric conductor (PEC) object from an incident plane wave. The dielectric modulation around the highly reflective scattering PEC object is determined by an optimization process for multi-directional cloaking purposes. Additionally, to obtain the multi-directional effect of the cloaking structure, an optimized slice is mirror symmetrized through a radial perimeter. The three-dimensional (3D) finite-difference time-domain method is integrated with ...Более

Статья 2022 Mühendislik Fakültesi Nanomaterials12 ( 23 ) 36 Просмотры
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Curved beam generation and its experimental realization by rectangular prism with asymmetric polynomial back surface

Mirbek TURDUEV

With the discovery of self-accelerating beams, possibility of obtaining curved light beams in free space has been realized. These special beams paved the way for many new applications as well as the exploration of novel beam types. Recently, great research effort has been conducted to realize different types of curved beams such as photonic hook and airy beam. These curved types of beams are obtained by introducing structural asymmetry or applying non-uniform dielectric distribution to the input and output face of the structure. With this regard, we propose specially designed asymmetric struct ...Более

Статья 2023 Mühendislik Fakültesi Physica Scripta98 ( 1 ) 79 Просмотры
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