کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5375415 | 1504292 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-order harmonic generation in vibrating two-electron molecules
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
By solving the time-dependent Schrödinger equation numerically, we simulate high-order harmonic generation from one-dimensional hydrogen molecules driven by intense laser pulses of different wavelengths. The electron-electron interaction and the vibrational degree of freedom are treated fully quantum mechanically. We show that the ratio of harmonic signals from D2 and H2 can be understood as a consequence of two-center interference in the presence of nuclear motion. For 800Â nm laser wavelength, high-order harmonic generation is essentially a one-electron process. For 1500Â nm the interaction of both electrons with the laser field should be taken into account in the numerical calculation. Nevertheless, a simple model based on the shortest possible trajectories of a single active electron in the laser field predicts the ratio D2/H2 reasonably well.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 366, Issues 1â3, 10 December 2009, Pages 54-57
Journal: Chemical Physics - Volume 366, Issues 1â3, 10 December 2009, Pages 54-57
نویسندگان
C.C. ChirilÄ, M. Lein,