کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1542232 996713 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Two-step photoionization of cold atoms by two-color evanescent-light waves and application to atom detection with high spatial resolution
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Two-step photoionization of cold atoms by two-color evanescent-light waves and application to atom detection with high spatial resolution
چکیده انگلیسی
We consider a new scheme of optically ionizing atoms with 10-nm-order spatial resolution. In this method, two-color near-field lights are generated on a narrow slit illuminated by two-color evanescent lights via total-internal reflection of two-wavelength light beams. In order to illustrate the feasibility, we first obtain the ionization cross section from two-step photionization of cold Rb atoms by two-color evanescent lights on a plane surface of a prism. Then, we numerically estimate the ionization efficiency as a function of the slit width using Bethe formula. The scheme is useful for detecting ground-state atoms under less perturbation by scattered light.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 265, Issue 2, 15 September 2006, Pages 692-695
نویسندگان
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