کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1542164 996712 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effect of two-photon absorption and optical excitation area on the generation of THz radiation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
The effect of two-photon absorption and optical excitation area on the generation of THz radiation
چکیده انگلیسی

It was found experimentally that the THz radiation throughput based on optical rectification is strongly related to the optical excitation size in a ZeTe emitter. The factors affecting the THz radiation throughput are investigated in detail both experimentally and theoretically. By taking into account optical rectification, diffraction and two-photon absorption effects, a theoretical model is established to describe the emitting field intensity of THz radiation. There is excellent agreement between the theoretical results and the experimental data under high excitation power. Both theoretical and experimental results demonstrate that there is a trade-off between these three effects for THz radiation, and that in order to increase the THz radiation throughput based on optical rectification, one should choose suitable excitation size under a given pump power.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 267, Issue 2, 15 November 2006, Pages 422–426
نویسندگان
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