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论文类型：期刊论文

发表时间：2010-08-01

发表刊物：JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY

收录刊物：SCIE

卷号：9

期号：4

页面范围：785-795

ISSN号：0219-6336

关键字：Above-threshold ionization; carrier-envelope phase; molecular orientation

摘要：We investigate theoretically the above-threshold ionization (ATI) of the polar NaK molecule exposed in few-cycle laser field by numerically solving the time-dependent Schrodinger equation including the vibrational and rotational degrees of freedom. The left and right ATI spectra are calculated by integrating the ionization continuum wave function over the left and the right half spheres along the laser polarization. We find that the left and right ATI spectra are asymmetric, and this asymmetry depends strongly on the molecular orientation and the carrier-envelope phase (CEP) of the laser pulse. Moreover, we also perform the calculation for different initially rotational states to study the effect of rotational temperature on the ATI dynamics.