نتایج جستجو برای: geometric optics

تعداد نتایج: 121788  

Journal: :Proceedings of the American Mathematical Society 2000

Journal: :Laser & Photonics Reviews 2021

Geometric phase is a unifying and central concept in physics, including optics. As matter of fact, optics played pivotal role from the inception this new paradigm, as some first experimental demonstrations have been carried out A specific type geometric was introduced by Pancharatnam while investigating interference effects between different polarizations. This phase, nowadays called Pancharatn...

2008
Shi Jin Dongsheng Yin

We construct a numerical scheme based on the Liouville equation of geometric optics coupled with the Geometric Theory of Diffraction (GTD) to simulate the high frequency linear waves diffracted by a corner. While the reflection boundary conditions are used at the boundary, a diffraction condition, based on the GTD theory, is introduced at the vertex. These conditions are built into the numerica...

2005
E. Guadagnini

For gravitational deflections of massless particles of given helicity from a classical rotating body, we describe the general relativity corrections to the geometric optics approximation. We compute the corresponding scattering cross sections for neutrinos, photons and gravitons to lowest order in the gravitational coupling constant. We find that the helicity coupling to spacetime geometry modi...

Journal: :Journal of Differential Geometry 1998

2006
Yiton T. Yan Y. Cai W. Colocho F-J. Decker J. Seeman M. Sullivan J. Turner U. Wienands M. Woodley G. Yocky

Through horizontal and vertical excitations, we have been able to make a precison measurement of linear geometric optics parameters with a Model-Independent Analysis (MIA). We have also been able to build up a computer model that matches the real accelerator in linear geometric optics with an SVD-enhanced Least-square fitting process. Recently, with the addition of longitudinal excitation, we a...

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