کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5375416 | 1504292 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Probing H2 quantum autoionization dynamics with xuv atto and femtosecond laser pulses
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Probing H2 quantum autoionization dynamics with xuv atto and femtosecond laser pulses Probing H2 quantum autoionization dynamics with xuv atto and femtosecond laser pulses](/preview/png/5375416.png)
چکیده انگلیسی
We present a theoretical study of dissociative ionization of H2 and D2 produced by xuv atto and femtosecond laser pulses. We pay special attention to the analysis of the autoionization dynamics and investigate the effect of the pulse characteristics (spectrum, duration and chirp) on the proton kinetic energy spectrum and the fully differential electron angular distributions. We show that very short pulses, e.g. of 400Â as, lead to angular distributions that are nearly independent of the pulse spectral shape and chirp. However, these angular distributions are practically symmetric, which provides little information on the autoionization dynamics. In contrast, for pulses of a few fs, the angular distributions depend significantly on the spectral shape. In particular, when the bandwidth is narrow and the pulse is not chirped, strong asymmetries in the angular distributions are observed. These asymmetries vary with pulse duration, which is relevant to investigate the autoionization decay dynamics of these states.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 366, Issues 1â3, 10 December 2009, Pages 58-63
Journal: Chemical Physics - Volume 366, Issues 1â3, 10 December 2009, Pages 58-63
نویسندگان
Felipe Morales, Jhon Fredy Pérez-Torres, José Luis Sanz-Vicario, Fernando MartÃn,