Boundary diffraction wave integrals for diffraction modeling of external occulters
نویسندگان
چکیده
منابع مشابه
Boundary diffraction wave integrals for diffraction modeling of external occulters.
An occulter is a large diffracting screen which may be flown in conjunction with a telescope to image extrasolar planets. The edge is shaped to minimize the diffracted light in a region beyond the occulter, and a telescope may be placed in this dark shadow to view an extrasolar system with the starlight removed. Errors in position, orientation, and shape of the occulter will diffract additional...
متن کاملNumerical Evaluation of Diffraction Integrals
This paper describes a simple numerical integration method for diffraction integrals which is based on elementary geometrical considerations of the manner in which different portions of the incident wavefront contribute to the diffracted field. The method is applicable in a wide range of cases as the assumptions regarding the type of integral are minimal, and the results are accurate even when ...
متن کاملDiffraction of ultrashort Gaussian pulses within the framework of boundary diffraction wave theory
We study the diffraction of Gaussian pulses and beams within the framework of boundary diffraction wave theory. For the first time the boundary diffraction wave theory is applied to pulsed Gaussian beams, and it is shown that the diffracted field of a pulsed Gaussian beam on a circularly symmetric aperture can be evaluated by a single 1D integration along the diffracting aperture at every point...
متن کاملON BOUNDARY - ELEENT SOLUTIONS OF " WAVE RADIATION - DIFFRACTION PROBLEMS Paul
A distinct feature of wave boundaryintegral equations are the " irregular Two topics on the numerical solution of frequencies. They coincide with the eigenboundary-integral equations arising in linear frequencies of the interior Dirichlet or wave-body interactions are discussed. The Neumann problems, and are known to introduce properties of a spectral technique for the large errors in the predi...
متن کاملApproximate boundary conditions for diffraction
The object of this note is to describe a method that can be used to obtain useful boundary conditions to model various situations that arise in diffraction theory. In particular when wanting to apply the Wiener-Hopf technique to diffraction problems that involve thin transmissive media. Transmissive here means that the thin layer medium suffers a change in the physical quantities of density, ac...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2012
ISSN: 1094-4087
DOI: 10.1364/oe.20.015196