کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1539148 | 996630 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Discrete diffraction for analytical approach to tightly focused electric fields with radial polarization
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Radially polarized laser beams in high-resolution microscopy provide an effective means to reduce the focus size below the diffraction limit. Unfortunately, their theoretical manipulation is usually limited to numerical methods. Here, we demonstrate an approach that leads to analytical expressions for the focused electric fields. The approach is based on the discretization of the continuous character of diffraction taking place at the microscope focus. Comparisons with fully numerical calculation are discussed. It results that the new approach accurately reflects the distribution of light within the focal volume with relative deviations that are between 10â4 and 10â13.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 282, Issue 19, 1 October 2009, Pages 3862-3868
Journal: Optics Communications - Volume 282, Issue 19, 1 October 2009, Pages 3862-3868
نویسندگان
Michele Marrocco,