کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1542349 996717 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Blind phase shift extraction and wavefront retrieval by two-frame phase-shifting interferometry with an unknown phase shift
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Blind phase shift extraction and wavefront retrieval by two-frame phase-shifting interferometry with an unknown phase shift
چکیده انگلیسی

An iterative algorithm to extract the arbitrary unknown phase shift in two-frame phase-shifting interferometry and then reconstruct the complex object wave is proposed. In combination with the least square principle and some calculation formulae we developed, this algorithm allows us to find the value of unknown phase shift by using only two interferograms without additional knowledge or measurement. Computer simulations have shown that this algorithm works well for both the smooth and diffusing objects to a very high accuracy over a wide range of the phase shift from 0.4 to 2.5 rad.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 273, Issue 1, 1 May 2007, Pages 54–59
نویسندگان
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