Control of molecular processes by a sequence of linearly chirped pulses

Control of molecular processes by a sequence of linearly chirped pulses
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通过一系列线性啁啾脉冲控制分子过程

DOI:
10.1063/1.1518003
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发表时间:
2002
影响因子:
4.4
通讯作者:
Hiroki Nakamura
Hiroki Nakamura
中科院分区:
化学2区
文献类型:
--
作者:
K. Nagaya;Y. Teranishi;Hiroki Nakamura

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提出了一种利用线性啁啾脉冲序列控制分子过程的新方案,并将其应用于选择激发相邻能级之间的能级,完成双原子分子的电子激发。它的基本思想与传统的利用啁啾脉冲的基本思想有很大的不同,它根本不依赖于绝热快速通过的思想,而是试图显式地控制基本的非绝热跃迁。分子过程的控制可以通过利用干涉效应控制Floquet(或Dressed)态之间的非绝热跃迁来实现。该格式可以利用非绝热跃迁的解析理论来建立,并且可以从理论上估计适当的控制参数。通过数值算例验证了该方法与其他常规方法相比的稳健性。也就是说,本方案对脉冲面积的变化是稳定的。
A new scheme of controlling molecular processes by a sequence of linearly chirped pulses is proposed and is applied to selective excitation of an energy level among closely lying ones and to complete electronic excitation of a diatomic molecule. The basic idea is quite different from the conventional ones utilizing chirped pulses in the sense that the present one does not rely on the idea of adiabatic rapid passage at all, but tries to control basic nonadiabatic transitions explicitly. Control of molecular processes can be achieved by controlling nonadiabatic transitions among Floquet (or dressed) states with use of the interference effects. The scheme can be formulated with use of the analytical theories of nonadiabatic transitions, and the proper control parameters can be estimated theoretically. Numerical demonstrations are provided to confirm the robustness of the method in comparison with the other conventional ones. Namely, the present scheme is shown to be stable against the variation of pulse area...
DOI: 10.1016/0168-1176(88)80112-5
发表时间: 1988-07
期刊: International Journal of Mass Spectrometry and Ion Processes
影响因子: --
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