کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1533240 1512553 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Second harmonic generation of off axial vortex beam in the case of walk-off effect
ترجمه فارسی عنوان
تولید دوم هارمونیک از پرتوی گردشی محوری در مورد اثر پیاده روی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
Process of off axial vortex beam propagating in negative uniaxial crystal is investigated in this work. Firstly, we get the formulae of the normalized electric field and calculate the location of vortices for second harmonic beam in two type of phase matching. Then, numerical analysis verifies that the intensity distribution and location of vortices of the first order original vortex beam depend on the walk-off angle and off axial magnitude. It is shown that, in type I phase matching, the distribution of vortices is symmetrical about the horizontal axis, the separation distance increases as the off axial magnitude increases or the off axial magnitude deceases. However, in type II phase matching, the vortices are symmetrical along with some vertical axis, and increase of the walk-off angle or off axial magnitude leads to larger separation distance. Finally, the case of high order original off axial vortex beam is also investigated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 370, 1 July 2016, Pages 267-275
نویسندگان
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