کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1863973 1530644 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Radiation forces on a dielectric sphere produced by highly focused hollow Gaussian beams
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Radiation forces on a dielectric sphere produced by highly focused hollow Gaussian beams
چکیده انگلیسی

The radiation force on a dielectric sphere produced by highly focused hollow Gaussian beams (HGBs) in the Rayleigh scattering regime is theoretically investigated. Numerical results demonstrate that, the highly focused HGB at the focus of the lens system becomes a peak-centered shape which can be used to stably trap and manipulate the particles with the refractive index larger than the ambient, and in the neighborhood of the focus the beam becomes a doughnut shape which can be used to guide the particles with refractive index lower than the ambient. The condition of the trapping stability is also analyzed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 363, Issues 5–6, 9 April 2007, Pages 502–506
نویسندگان
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