Results 11 to 20 of about 1,120,417 (313)
Steepest-descent algorithm for simulating plasma-wave caustics via metaplectic geometrical optics. [PDF]
Physical Review E, 2021 The design and optimization of radiofrequency-wave systems for fusion applications is often performed using ray-tracing codes, which rely on the geometrical-optics (GO) approximation. However, GO fails at wave cutoffs and caustics.
Sean Donnelly, N. Lopez, I. Dodin
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Metaplectic geometrical optics for modeling caustics in uniform and non-uniform media [PDF]
Journal of Optics, 2020 As an approximate theory that is highly regarded for its computational efficiency, geometrical optics (GO) is widely used for modeling waves in various areas of physics. However, GO fails at caustics, which significantly limits its applicability.
N. Lopez, I. Dodin
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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
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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
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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
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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
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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
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Journal of Physics: Conference Series, 2020 This research aims to produce media learning in the form of experimental video on the geometrical optics thet meets good qualifications which include aspects of validity, practicality and improving learning outcomes.
Fitri Ramadani, Sahyar, J. Rajagukguk
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Gravitational waves and geometrical optics in scalar-tensor theories [PDF]
Journal of Cosmology and Astroparticle Physics, 2019 The detection of gravitational waves (GWs) propagating through cosmic structures can provide invaluable information on the geometry and content of our Universe as well as on the fundamental theory of gravity.
Alice Garoffolo +4 more
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