Results 11 to 20 of about 1,264,340 (305)
Mental Representations and Cognitive Schemata of Ninth Grade Students for the Refraction of Light
Education Sciences, 2023 The current research study deals with students’ mental representations and cognitive schemata of light refraction. In the study, 213 ninth grade students participated who had taken basic Geometric Optics courses on refraction and Snell’s law.
George Fyttas +3 more
doaj +1 more source
Asymptotic spreading of interacting species with multiple fronts Ⅰ: A geometric optics approach [PDF]
Discrete and Continuous Dynamical Systems. Series A, 2019 We establish spreading properties of the Lotka-Volterra competition-diffusion system. When the initial data vanish on a right half-line, we derive the exact spreading speeds and prove the convergence to homogeneous equilibrium states between successive ...
Qian Liu, Shuang Liu, King-Yeung Lam
semanticscholar +1 more source
Recent Developments of Femtosecond Laser Direct Writing for Meta-Optics
Nanomaterials, 2023 Micro-optics based on the artificial adjustment of physical dimensions, such as the phase, polarization, and wavelength of light, constitute the basis of contemporary information optoelectronic technology. As the main means of optical integration, it has
Shuai Xu +3 more
doaj +1 more source
Supporting quadric method for collimated beams [PDF]
Компьютерная оптика, 2021 We consider the problem of calculating a refractive element with two surfaces, forming a flat front and a given distribution of illumination. The supporting quadrics method is formulated for calculating a given optical element and it is shown that this ...
A.A. Mingazov +2 more
doaj +1 more source
Gravitational wave propagation beyond geometric optics [PDF]
Physical Review D, 2019 It is standard practice to study the lensing of gravitational waves (GW) using the geometric optics regime. However, in many astrophysical configurations this regime breaks down as the wavelength becomes comparable to the Schwarzschild radius of the lens.
G. Cusin, Macarena Lagos
semanticscholar +1 more source
Geometric Phase in Optics: From Wavefront Manipulation to Waveguiding
Laser & Photonics reviews, 2021 Geometric phase is a unifying and central concept in physics, including optics. As a matter of fact, optics played a pivotal role from the inception of this new paradigm, as some of the first experimental demonstrations have been carried out in optics. A
C. Jisha, Stefan Nolte, A. Alberucci
semanticscholar +1 more source
Geometrically robust linear optics from non-Abelian geometric phases
Physical Review Research, 2022 We construct a unified operator framework for quantum holonomies generated from bosonic systems. For a system whose Hamiltonian is bilinear in the creation and annihilation operators, we find a holonomy group determined only by a set of selected ...
Julien Pinske, Stefan Scheel
doaj +1 more source
Use of Nonlinear Operators for Solving Geometric Optics Problems
East European Journal of Physics, 2022 The aim of this work is to develop and apply a mathematical apparatus based on nonlinear operators for solving problems of geometric optics, namely the construction of images of objects in systems of thin lenses. The problem of constructing the image of
Ilia V. Demydenko
doaj +1 more source
On the Second Boundary Value Problem for Monge–Ampère Type Equations and Geometric Optics [PDF]
Archive for Rational Mechanics and Analysis, 2017 In this paper, we prove the existence of classical solutions to second boundary value problems for generated prescribed Jacobian equations, as recently developed by the second author, thereby obtaining extensions of classical solvability of optimal ...
F. Jiang, N. Trudinger
semanticscholar +1 more source
Semilinear geometric optics with boundary amplification [PDF]
, 2012 We study weakly stable semilinear hyperbolic boundary value problems with highly oscillatory data. Here weak stability means that exponentially growing modes are absent, but the so-called uniform Lopatinskii condition fails at some boundary frequency ...
Alinhac +6 more
core +5 more sources