کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
849073 909258 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of complex phase plate on tight focusing of azimuthally polarized double ring shaped beam
ترجمه فارسی عنوان
اثر فاز پیچیده فاز در فوکوس فشرده پرتو شکل دو قطبی زاویه دار
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی

Based on the vector diffraction theory, the effect of complex phase plate on the intensity distribution of TEM11 mode azimuthally polarized Laguerre–Gaussian beam in the focal region of high NA lens is investigated theoretically. It is observed that a properly designed complex phase plate can generate a subwavelength focal hole having FWHM of 0.332λ with an extended focal depth of 54.4λ. We also observe that by using properly designed complex phase plate generates novel focal patterns including splitting of focal holes and multi focus are obtained. The author expects such investigation is worthwhile for optical manipulation and material processing technologies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 125, Issue 15, August 2014, Pages 4047–4050
نویسندگان
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