کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1830358 | 1526494 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancement of terahertz Smith–Purcell radiation by two electron beams
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
An approach to the enhancement of terahertz (THz) Smith–Purcell (SP) radiation from an open rectangular grating driven by two electron beams is presented in this paper. In the present work, two electron beams with a velocity separation propagating over the grating are employed. With the help of a two-dimensional particle-in-cell simulation, some nonlinear processes from spontaneous emission to superradiant radiation are demonstrated. The simulation results show that the enhancements of SP radiation power, the shortened saturation time, and the lower threshold current can be obtained at an optimum voltage ratio due to the two-beam interaction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 580, Issue 3, 11 October 2007, Pages 1552–1558
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 580, Issue 3, 11 October 2007, Pages 1552–1558
نویسندگان
Wenxin Liu, Ziqiang Yang, Zheng Liang, D. Li, K. Imasaki, Zongjun Shi, Feng Lan, Gun-Sik Park,