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Источник : Physica Scripta ✕Кафедра : Elektrik-Elektronik ... ✕
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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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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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