کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1541272 996679 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Anomalous spectral behavior of vectorial apertured ultrashort pulsed beams beyond the paraxial approximation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Anomalous spectral behavior of vectorial apertured ultrashort pulsed beams beyond the paraxial approximation
چکیده انگلیسی
Based on the vectorial Rayleigh diffraction integrals, the analytical expression for the spectral intensity of a vectorial nonparaxial ultrashort pulsed Gaussian beam diffracted at a circular hard-aperture is derived. The effect of f-parameter (f = 1/k0w0) on the spectral anomalies near phase singularities of the vectorial nonparaxial ultrashort pulsed beams is studied. It is shown that the spectral switch near the phase singularity of diffracted vectorial nonparaxial ultrashort pulsed beam still exists beyond paraxial regime, but disappears when the f-parameter is larger than a certain value.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 281, Issue 4, 15 February 2008, Pages 521-526
نویسندگان
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