Two-dimensional wavefront reconstruction from lateral multi-shear interferograms
نویسندگان
چکیده
منابع مشابه
Positioning and localization of two-wavelength interferograms for wavefront reconstruction with volume holographic media.
This work studies both theoretically and experimentally the formation of the contour interference patterns generated by a two-wavelength real-time holographic interferometer. The resulting contour interference fringes are due to the intersection of the measured surface with parallel, equally spaced planes of constant elevation. The theoretical analysis describes how the spatial frequency of the...
متن کاملWavefront Reconstruction Acoustic Imaging Using Two-Dimensional Arrays
This report describes an imaging system employing the digital reconstruction of the near fields of an object using the amplitude and phase of the scattered fields measured on a remote plane in the Fresnel zone. This imaging technique is shown to be significantly different from holographic and phased array systems and basically computationally implements a classical lens system having the recons...
متن کاملGuided Multi-Dimensional Reconstruction from Cross-Sections
Given parallel (n?1)-dimensional cross-sections of an n-dimensional body, one would like to reconstruct the body. The method based upon distance eld interpolation gives a robust solution to this problem in its ability to deal with any topology in any dimension. Still this method may give undesired solutions to the problem if the changes from one cross-section to the next are big relative to the...
متن کاملDosimetric uncertainties of three‐dimensional dose reconstruction from two‐dimensional data in a multi‐institutional study
Inconsistencies in the treatment planning process leading to dosimetric uncertainties may affect conclusions drawn from interinstitutional radiation oncology clinical trials. The purpose of this study was to assess the dosimetric uncertainties resulting from the process of reconstructing three-dimensional dose distributions from two-dimensional treatment plan information provided by participati...
متن کاملX-ray wavefront characterization with two-dimensional wavefront sensors: shearing interferometers and Hartmann wavefront sensors
Phase reconstructions from a two-dimensional shearing inter-ferometer, based on two orthogonal phase gratings in a single plane, and a Hartmann sensor are compared. Design alternatives for both wavefront sensors are given, and simulated performance of both the two-dimensional x-ray shearing interferometer and Hartmann wavefront sensor are presented for two different phase profiles. The first co...
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.20.015723