Laser parameter influence on quantum path selection in a bichromatic field

Laser parameter influence on quantum path selection in a bichromatic field
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激光参数对双色场中量子路径选择的影响

DOI:
10.1088/0953-4075/42/10/105601
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发表时间:
2009-05
影响因子:
1.6
通讯作者:
Peixiang Lu
Peixiang Lu
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Weiyi Hong;Shaoyi Wang;Peixiang Lu

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我们从理论上研究了基本场及其控制场均为线偏振的双色激光脉冲中激光参数对量子路径选择的影响。激光器的参数,即控制场的相对强度及其相对于基本场的相对相位,通过影响其电离概率来决定量子路径的选择。在 ω + 3ω 和 ω + 2ω 激光场的情况下,表明多周期脉冲中的量子路径选择比少周期脉冲中的量子路径选择更依赖于参数,并且多周期 ω + 3ω 脉冲中的量子路径选择对相位和强度变化表现出稳定性。我们的结果对于在实验中选择合适的量子路径选择参数非常有益。
We theoretically investigate the laser parameter influence on quantum path selection in a two-colour laser pulse, of which both fundamental field and its controlling field are linearly polarized. The laser's parameters, namely, the relative intensity of the controlling field and its relative phase with respect to the fundamental field, determine the quantum path selection by affecting their ionization probabilities. In both cases of the ω + 3ω and ω + 2ω laser fields, it is shown that the quantum path selection in the multi-cycle pulse is more dependent on the parameters than that in the few-cycle pulse, and the selection of the quantum path in the multi-cycle ω + 3ω pulse shows stability to the phase and intensity variation. Our results are very beneficial to choosing appropriate parameters for quantum path selection in experiments.
通过 3Ω 双色激光场控制高次谐波产生中的量子路径
DOI: 10.1088/0953-4075/40/5/004
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