کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
735989 | 893697 | 2007 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Focusing of a vortex carrying beam with Gaussian background by a lens in the presence of spherical aberration and defocusing
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Focusing of a vortex carrying beam with Gaussian background by a lens in the presence of spherical aberration and defocusing Focusing of a vortex carrying beam with Gaussian background by a lens in the presence of spherical aberration and defocusing](/preview/png/735989.png)
چکیده انگلیسی
Diffraction pattern formed by a lens for a vortex containing truncated beam with Gaussian background, and in the presence of spherical aberration and defocusing has been studied by Fresnel–Kirchhoff diffraction integral. For the study, two different values of topological charge are selected. Compensation of aberration in the presence of appropriate value of defocusing is investigated. Presence of spherical aberration results in an increase in the size of the dark core of the diffraction pattern. Results are also presented for the encircled energy. Some results are also presented for the influence of truncation parameter of the beam, on the point spread function at different observation planes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics and Lasers in Engineering - Volume 45, Issue 7, July 2007, Pages 773–782
Journal: Optics and Lasers in Engineering - Volume 45, Issue 7, July 2007, Pages 773–782
نویسندگان
Rakesh Kumar Singh, P. Senthilkumaran, Kehar Singh,