reconstruction of interfering waves from three dimensional analysis of their interference pattern

نویسندگان

محمدتقی توسلی

m. t. tavassoli احمد درودی

a. doroudi

چکیده

optical interferometry is being used as an efficient tool to analyse smooth surfaces for more than a century. although, due to introduction of novel computer assisted analyzing techniques and array detectors, like ccd, the speed and the precision of processing have been increased tremendously, but the main equation involved is not changed. the main equation is the intensity distribution in the interference pattern of a plane reference wave and the required wave.   in the paper it is shown that by analysis of the interference pattern of two unknown waves in three dimension (which is possible for coherent waves) it is possible to reconstruct each wave separately. this approach has several useful applications, namely, on can do without reference plane wave in the interferometric surface analysis and, it is possible to reconstruct an unknown wave by making it to interfere with itself. this is very useful in determining the profile of laser beams and erasing the effect of atmospheric disturbances on observing astronomical objects.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Mean-field model for the interference of matter waves from a three-dimensional optical trap

Using the mean-field time-dependent Gross-Pitaevskii equation we study the formation of a repulsive Bose-Einstein condensate on a combined optical and harmonic traps in two and three dimensions and subsequent generation of the interference pattern upon the removal of the combined traps as in the experiment by Greiner et al. [Nature (London) 415, 39 (2002)]. For optical traps of moderate strengt...

متن کامل

Three-Dimensional Reconstruction of Fire from Images

Three-Dimensional Reconstruction of Fire from Images Samuel William Hasinoff Master of Science Graduate Department of Computer Science University of Toronto 2002 Interesting visual simulations have been proposed for physical phenomena such as fire and smoke, but scant attention has been paid to reconstructing models of these phenomena from multiple images of real scenes. Here we study the probl...

متن کامل

Reconstruction of Three-Dimensional Objects through Matching of Their Parts

The problem of reassembling an object from its parts or fragments has never been addressed with a unified computational approach, which depends on the pure geometric form of the parts and not application-specific features. We propose a method for the automatic reconstruction of a model based on the geometry of its parts, which may be computergenerated models or range-scanned models. The matchin...

متن کامل

woman-defined identity: analysis of selected poems of adrienne rich

the current thesis is composed in five chapters in the following fashion: chapter two encompasses the applied framework of the project in details; the methodology of carl gustav jung to explain the process of individuation, the major archetypes and their attributes and his techniques to assess the mind’s strata are all explained. moreover, the austrian psychoanalysts, heinz kohut’s models of a...

Three Dimensional Stability Analysis of a Liquid Propellant Combustor

A theoretical study analyzing three-dimensional combustion acoustic instabilities in a liquid propellant rocket engine combustor has been conducted. A linear theory based on Crocco’s pressure sensitive time lag model is used. To apply this theory the combustor is divided into two main components, including the combustion chamber and the converging part of the nozzle. The assumption of concentra...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
پژوهش فیزیک ایران

جلد ۱، شماره ۲، صفحات ۹۴-۱۰۲

کلمات کلیدی

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023