کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
849518 909266 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phase and polarization singularities of nonparaxial Gaussian vortex beams
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Phase and polarization singularities of nonparaxial Gaussian vortex beams
چکیده انگلیسی

The analytical expression for nonparaxial Gaussian vortex beams propagating in free space is derived, which enables us to study phase and polarization singularities in nonparaxial vector wavefields. Differing from the polarization singularities formed by two transverse electric-field components in the paraxial regime, the polarization singularities can be formed by the transverse and longitudinal electric-field components of nonparaxial beams, and there exist C-points and L-lines. The variation of the beam parameters and propagation distance will result in a shift of phase and polarization singularities, but their position relation remains unchanged and the topological relationship holds true.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 122, Issue 1, January 2011, Pages 65–69
نویسندگان
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