Results 1 to 10 of about 5,049 (222)
Voltage-controlled two-dimensional Fresnel diffraction pattern in quantum dot molecules [PDF]
Scientific ReportsThis study explores the influence of inter-dot tunneling effects within a quantum dot molecule on the Fresnel diffraction phenomenon. Our findings indicate that the Fresnel diffraction of the output probe Gaussian field can be manipulated by adjusting ...
Hamed Mehrabzadeh +4 more
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Results in Optics, 2020 Generally, the length of ciphertexts and encryption keys are usually longer than that of the plaintexts. In this study, an optical image compression method based on Fresnel diffraction and discrete wavelet transform is proposed.
Chuhan Wu +4 more
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On Diffraction Fresnel Transforms for Boehmians [PDF]
Abstract and Applied Analysis, 2011 The theory of the diffraction Fresnel transform is extended to certain spaces of Schwartz distributions. In the context of Boehmian spaces, the diffraction Fresnel transform is obtained as a continuous function.
S. K. Q. Al-Omari, A. Kılıçman
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Results in OpticsWe proposed vector diffraction equations based on 3D Huygens-Fresnel principle and vector decomposition in Cartesian coordinate. Our expression should more accurate than classical Richards-Wolf diffraction, because the deduction of Richards-Wolf ...
Yi Yang, Ke-Gui Xia
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Fresnel Diffraction Model for Laser Dazzling Spots of Complementary Metal Oxide Semiconductor Cameras [PDF]
SensorsLaser dazzling on complementary metal oxide semiconductor (CMOS) image sensors is an effective method in optoelectronic countermeasures. However, previous research mainly focused on the laser dazzling under far fields, with limited studies on situations ...
Xinyu Wang +5 more
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Nonlinear temporal Fresnel diffraction induced by phase jumps in fiber optics [PDF]
EPJ Web of Conferences, 2020 We numerically study the temporal patterns that emerge upon the propagation of one or two π phase jumps in a nonlinear optical fiber. Both normal and anomalous regimes of dispersion are considered.
Sheveleva Anastasiia, Finot Christophe
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A Content Hiding Method for Digital Hologram Using Multiple Fresnel Diffraction [PDF]
Applied Sciences, 2020 A digital hologram (DH) is so highly valued that it needs to be protected from exposure to an unpermitted person, which could be done by a content encryption.
Young-Ho Seo +2 more
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Stochastic ray tracing for Fresnel diffraction
Optics ExpressWe propose stochastic ray tracing for laser beam propagation in Fresnel diffraction to find the duality between wave and ray representations. We transform from the Maxwell equations to the Schrödinger equation for a monochromatic laser beam in the slowly varying envelope approximation.
Keita Seto
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Optical elements for the extreme ultraviolet and soft X-ray range [PDF]
Biuletyn Wojskowej Akademii Technicznej, 2022 The article presents the physical basis and overview of optical elements for the rangeincluding extreme ultraviolet (EUV) and soft X-ray (SXR). The first chapter contains an introductionto the subject under review and physical fundamentals.
Martyna Wardzińska +1 more
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Cumhuriyet Science Journal, 2023 In the present work, a computer simulation program generates Fresnel diffraction patterns from small-size apertures using illumination wavelengths from extreme ultraviolet (XUV) to the visible region suggesting that it can be used to model a wide range ...
Muhammed Sayraç +2 more
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