Search results
Results From The WOW.Com Content Network
The Pearcey integral is a class of canonical diffraction integrals, often used in wave propagation and optical diffraction problems [2] The first numerical evaluation of this integral was performed by Trevor Pearcey using the quadrature formula. [3] [4] Reflective caustic generated from a circle and parallel rays.
Date/Time Thumbnail Dimensions User Comment; current: 04:12, 27 December 2014: 500 × 429 (78 KB): Mgibby5 {{subst:Upload marker added by en.wp UW}} {{Information |Description = {{en|A schematic plot of the dielectric constant as a function of light frequency showing several resonances and plateaus indicating the activation of certain processes which can re...
Light rays enter a raindrop from one direction (typically a straight line from the Sun), reflect off the back of the raindrop, and fan out as they leave the raindrop. The light leaving the raindrop is spread over a wide angle, with a maximum intensity at 40.89–42°.
In mathematics and physics, the inverse scattering problem is the problem of determining characteristics of an object, based on data of how it scatters incoming radiation or particles. [1]
Their effects can be computed via numerical evaluation of Fourier transforms of the waveform, via integration of higher-order slowly varying envelope approximations, by a split-step method (which can use the exact dispersion relation rather than a Taylor series), or by direct simulation of the full Maxwell's equations rather than an approximate ...
Light scattering by a coated sphere (extinction efficiency, scattering efficiency, light scattering intensity) 2009-2022 Scattnlay: O. Pena, U. Pal, K. Ladutenko [16] C++, Python, and JavaScript: GPLv3 Light scattering from a multilayered sphere based on the algorithm by W Yang. [17] Very robust and stable, slower than Toon and Ackerman.
As a pencil of light goes through a flat plane of glass, its half-angle changes to θ 2. Due to Snell's law, the numerical aperture remains the same: NA = n 1 sin θ 1 = n 2 sin θ 2. In optics, the numerical aperture (NA) of an optical system is a dimensionless number that characterizes the range of angles over which the system can accept or ...
The last expression in the first equation shows that the wavelength of light needed to ionize a hydrogen atom is 4π/α times the Bohr radius of the atom. The second equation is relevant because its value is the coefficient for the energy of the atomic orbitals of a hydrogen atom: E n = − h c R ∞ / n 2 {\displaystyle E_{n}=-hcR_{\infty }/n ...