Results 41 to 50 of about 18,681 (274)
Физика волновых процессов и радиотехнические системы, 2023 Calculation of the electromagnetic field exited by a charged particle flying close to dielectric object is one of the important problems of charged particle radiation theory. In some cases, geometric optics area is preferable for calculations.
Ekaterina S. Belonogaya +1 more
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Quantum Caustics for Systems with Quadratic Lagrangians [PDF]
, 1998 We study caustics in classical and quantum mechanics for systems with quadratic Lagrangians. We derive a closed form of the transition amplitude on caustics and discuss their physical implications in the Gaussian slit (gedanken-)experiment.
Berry +24 more
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AIP Advances, 2012 A maskless method of electron beam lithography is described which uses the reflection of an electron beam from an electrostatic mirror to produce caustics in the demagnified image projected onto a resist–coated wafer. By varying the electron optics, e.g.
S. M. Kennedy +5 more
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Quantum Caustics for Systems with Quadratic Lagrangians in Multi-Dimensions [PDF]
, 1999 We study quantum caustics in $d$-dimensional systems with quadratic Lagrangians. Based on Schulman's procedure in the path-integral we derive the transition amplitude on caustics in a closed form for generic multiplicity $f$, and thereby complete the ...
Berry +25 more
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Caustic spot light for rendering caustics [PDF]
The Visual Computer, 2008 It is difficult to render caustic patterns at interactive frame rates. This paper introduces new rendering techniques that relax current constraints, allowing scenes with moving, non-rigid scene objects, rigid caustic objects, and rotating directional light sources to be rendered in real-time with GPU hardware acceleration.
Liu, X., Dong, Z., Bao, H., Peng, Q.
openaire +2 more sources
Engineering TransactionsBased on the principles of geometrical optics, an analytical description of caustics generated in a spherical mirror is presented. The formation of caustics in a wave field is studied using acoustic and electromagnetic waves as an example.
Andrzej Kulowski
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Magnification Cross Sections for the Elliptic Umbilic Caustic Surface
Universe, 2019 In gravitational lensing, magnification cross sections characterize the probability that a light source will have magnification greater than some fixed value, which is useful in a variety of applications. The (area) cross section is known to scale as
Amir B. Aazami +2 more
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Caustic Frequency in 2D Stochastic Flows Modeling Turbulence
Mathematics, 2021 Stochastic flows mimicking 2D turbulence in compressible media are considered. Particles driven by such flows can collide and we study the collision (caustic) frequency. Caustics occur when the Jacobian of a flow vanishes.
Leonid I. Piterbarg
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Properties of Planetary Caustics in Gravitational Microlensing
, 2005 Although some of the properties of the caustics in planetary microlensing have been known, our understanding of them is mostly from scattered information based on numerical approaches.
Asada H. +3 more
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Formation of caustics in Dirac-Born-Infeld type scalar field systems
, 2010 We investigate the formation of caustics in Dirac-Born-Infeld type scalar field systems for generic classes of potentials, viz., massive rolling scalar with potential, $V(\phi)=V_0e^{\pm \frac{1}{2} M^2 \phi^2}$ and inverse power-law potentials with $V ...
Goswami, U. D., Nandan, H., Sami, M.
core +1 more source