کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1540885 | 996669 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of Lorentz local field correction on propagation properties of few-cycle pulse in dense Î-type atomic medium
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of Lorentz local field correction on propagation properties of few-cycle pulse in dense Î-type atomic medium Effects of Lorentz local field correction on propagation properties of few-cycle pulse in dense Î-type atomic medium](/preview/png/1540885.png)
چکیده انگلیسی
By solving numerically the full Maxwell-Bloch equations without the slowly varying envelope approximation and the rotating-wave approximation, we investigate the effects of Lorentz local field correction (LFC) on the propagation properties of few-cycle laser pulse in a dense Î-type three-level atomic medium. We find that: when the area of the input pulse is larger, split of pulse occurs and the number of the sub-pulses with LFC is larger than that without LFC; at the same distance, the time interval between the first sub-pulse and the second sub-pulse in the case without LFC is longer than that with LFC, the time of pulse appearing in the case without LFC is later than that in the case with LFC, and the two phenomena are more obvious with propagation distance increasing; time evolution rules of the populations of levels |1>, |2> and |3> in the two cases with and without LFC are much different. When the area of the input pulse is smaller, effects of LFC on time evolutions of the pulse and populations are remarkably smaller than those in the case of larger area pulse.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 281, Issue 17, 1 September 2008, Pages 4493-4498
Journal: Optics Communications - Volume 281, Issue 17, 1 September 2008, Pages 4493-4498
نویسندگان
Hui Ma, Xijun Fan, Xia Tan, Hongwu Lu, Zhizhan Xu,