کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1534669 1512599 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Formation of optical vortices with topological charge |l|=1 and |l|=1/2 by use of the S-waveplate
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Formation of optical vortices with topological charge |l|=1 and |l|=1/2 by use of the S-waveplate
چکیده انگلیسی
We theoretically and experimentally demonstrate the generation of optical vortices using an S-waveplate, fabricated by femtosecond laser writing in silica glass. It is shown that this method allows to form orthogonally polarized vortices with fractional topological charge. At the double wavelength of the S-waveplate, the superposition of orthogonally polarized optical vortices with topological charge l=1/2 was generated. After separating the resulting beam with polarizer, optical vortices of topological charge l=1/2 were obtained. Vortices of fractional topological charge were detected by interfering the vortex beam with a Gaussian beam. A slightly laterally misadjusted Michelson interferometer was used for detection of vortices with integer topological charge.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 324, 15 August 2014, Pages 1-9
نویسندگان
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