| 强激光场中离子HD+光解离几率的相干控制 |
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| 引用本文： | 王国文.强激光场中离子HD+光解离几率的相干控制[J].光子学报,1998,27(8):673-678. |
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| 作者姓名： | 王国文 |
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| 作者单位： | 北京大学物理系 |
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| 基金项目： | 国家自然科学基金资助项目激光相干控制分子离解通道的研究,曙光1000计算机基金 |
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| 摘 要： | 对含时薛定谔方程用短时传播子的对称分割法求得了非微扰的数值解,计算了强超短脉冲基频激光(波长306.7nm)与其三倍频激光作用下的离子HD+光解离的相干控制参量大小设该离子的初态为电子振动.基态其中的相干激发是共振的.二束光之间的相对相位变化从0到360°在基频和倍频激光强度各为5×1013W/cm2和5.09×108W/cm2情形下,发现相对相位为π时,光解离几率达到最大。
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| 关 键 词： | 光解离 相干控制 短时指数传播子的对称分割 |
| 收稿时间： | 1998-05-27 |
THE COHERENT CONTROL OF PHOTODISSOCIATION OF THE ION HD + IN INTENSE LASER FIELDS |
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| Wang Guowen.THE COHERENT CONTROL OF PHOTODISSOCIATION OF THE ION HD + IN INTENSE LASER FIELDS[J].Acta Photonica Sinica,1998,27(8):673-678. |
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| Authors: | Wang Guowen |
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| Institution: | Wang Guowen Department of Physics,Peking University,Beijing 100871 Received date:1998-05-27 |
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| Abstract: | The coherent control of photodissociation of the ion HD+ subjected to the intense pulsed fundamental(306.7nm)and the third harmonic laser radiations has been calculated.The nonperturbative and numerical solution of the time-dependent Schrodinger equation is calculated applying the symmetrical splitting of the short-time exponential propagator.The initial state of the ion in the propagation is its ground vibronic state.The coherent exicitation is of resonance.The variation of the relative phases of the two laser beams ranges from 0 to 360 degrees.It has been shown that the total dissociation probability reaches the maximum at the relative phase of π for the pulses with the intensities of the fundamental and the third harmonic radiations,5×10-13W/cm2 and 5.09×108W/cm2. |
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| Keywords: | Photodissiciation Coherent control Symmetrical splitting of the short time exponential propagator |
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