کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
733935 893379 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Focus shaping of cylindrically polarized vortex beams by a high numerical-aperture lens
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
Focus shaping of cylindrically polarized vortex beams by a high numerical-aperture lens
چکیده انگلیسی

The focus-shaping technique of a cylindrically polarized vortex beam by a high numerical-aperture lens is reported. Such a polarized vortex beam is decomposed into radial and azimuthal polarization. It is shown that the total intensity distribution in the focal region is dependent not only on the numerical-aperture maximal angle and the polarization rotation angle but also on the topological charge. By choosing the proper combination of parameters, the adjustably confined flat-topped focus and focal hole can be obtained. The focus-shaping technique may find wide applications, such as optical tweezers, laser printing and material processing.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics & Laser Technology - Volume 41, Issue 3, April 2009, Pages 241–246
نویسندگان
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