Results 1 to 10 of about 110,082 (260)
An Overview of Geometrical Optics Restricted Quantum Key Distribution [PDF]
Entropy, 2021 Quantum key distribution (QKD) assures the theoretical information security from the physical layer by safely distributing true random numbers to the communication parties as secret keys while assuming an omnipotent eavesdropper (Eve).
Ziwen Pan, Ivan B. Djordjevic
doaj +2 more sources
Geometrical Optics Restricted Eavesdropping Analysis of Satellite-to-Satellite Secret Key Distillation [PDF]
Entropy, 2021 Traditionally, the study of quantum key distribution (QKD) assumes an omnipotent eavesdropper that is only limited by the laws of physics. However, this is not the case for specific application scenarios such as the QKD over a free-space link.
Ziwen Pan, Ivan B. Djordjevic
doaj +2 more sources
Geometrical optics method in the theory of channeling of high energy particles in crystals
Physics Letters B, 2019 The process of scattering of fast charged particles in thin crystals is considered in the transitional range of thicknesses, between those at which the channeling phenomenon is not developed and those at which it is realized.
N.F. Shul'ga, S.N. Shulga
doaj +3 more sources
A discontinuous Galerkin method to solve Liouville’s equation of geometrical optics [PDF]
EPJ Web of Conferences, 2022 We present an alternative method to ray tracing that is based on a phase space description of light propagation. Liouville’s equation of geometrical optics describes the evolution of the basic luminance on phase space.
van Gestel Robert A.M. +3 more
doaj +1 more source
Education Sciences, 2023 This study investigated pre-service science teachers’ conceptual understanding and confidence in geometrical optics with respect to gender and their previous achievement in geometrical optics course.
Derya Kaltakci-Gurel
doaj +1 more source
Berkala Ilmiah Pendidikan Fisika, 2021 This research aimed to test the feasibility of a geometrical optics instrument to identify the misconception and its causes. The instruments used in this research were question validation sheet and five-tier geometrical optics test (FIGOT) with 14 items ...
Farah Salmadhia +2 more
doaj +1 more source
Numerical Analysis of Optical Trapping Force Affected by Lens Misalignments
Photonics, 2021 Geometrical optics approximation is a classic method for calculating the optical trapping force on particles whose sizes are larger than the wavelength of the trapping light.
Hanlin Zhang +3 more
doaj +1 more source
Angular-multiplexed multichannel optical vortex arrays generators based on geometric metasurface
iScience, 2021 Summary: Recently, metasurface-based multichannel optical vortex arrays have attracted considerable interests due to its promising applications in high-dimensional information storage and high-secure information encryption.
Jinjin Jin +7 more
doaj +1 more source
Компьютерная оптика, 2022 We develop a method for calculating the eikonal function (or the phase function) of the light field, ensuring the formation of a prescribed irradiance distribution in the geometrical optics approximation.
L.L. Doskolovich +4 more
doaj +1 more source
Geometrical Optics applied to 1D Site Response of Inhomogeneous Soil Deposits [PDF]
, 2020 The technique referred as Geometrical Optics entails considering the wave propagation in a heterogeneous medium as if it happened with infinitely small wavelength.
Asimaki, Domniki +2 more
core +1 more source