کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1542153 996712 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Symmetrical iterative Fourier-transform algorithm using both phase and amplitude freedoms
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Symmetrical iterative Fourier-transform algorithm using both phase and amplitude freedoms
چکیده انگلیسی
A modified Gerchberg-Saxton algorithm, which we call symmetrical iterative Fourier transform algorithm, is presented and employed to a series of super-Gaussian beam shaping problems and arbitrary beam shaping problems. The main features of this algorithm include (1) using an amplitude-symmetric function of the failed result about the Fourier-domain constraint; (2) using both phase and amplitude freedoms in the iteration process, i.e. the noise produced outside the signal window by each iteration is kept. A formula is given to determine a critical constant in the search for the amplitude-symmetric function. The new method results in highly efficient solutions with highly precise beam profiles in the signal window for all the test problems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 267, Issue 2, 15 November 2006, Pages 347-355
نویسندگان
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