Selective two-photon excitation of a vibronic state by correlated photons
Selective two-photon excitation of a vibronic state by correlated photons
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DOI：
10.1063/1.3573565
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发表时间：
2011-03-28
影响因子：
4.4
通讯作者：
Oka, Hisaki
中科院分区：
文献类型：
--
作者：
Oka, Hisaki
我们从理论上研究了带能量反相关的相关光子对分子振动态的双光子激发。以具有三组振动态的莫尔斯振子为例，评价了双光子激发的选择性和效率。我们证明了一种振动模式可以被相关光子选择性地高效激发，而不需要相位操纵或脉冲整形技术。这可以通过控制量子相关来实现，使光子对同时具有两个脉冲宽度，即时间窄宽度和光谱窄宽度。虽然这种同步看起来是矛盾的，但我们可以通过调整两个光子之间的量子相关来创造这样一个光子对。c 2011年美国物理研究所。(doi: 10.1063/1.3573565)
We theoretically investigate the two-photon excitation of a molecular vibronic state by correlated photons with energy anticorrelation. A Morse oscillator having three sets of vibronic states is used, as an example, to evaluate the selectivity and efficiency of two-photon excitation. We show that a vibrational mode can be selectively excited with high efficiency by the correlated photons, without phase manipulation or pulse-shaping techniques. This can be achieved by controlling the quantum correlation so that the photon pair concurrently has two pulse widths, namely, a temporally narrow width and a spectrally narrow width. Though this concurrence is seemingly contradictory, we can create such a photon pair by tailoring the quantum correlation between two photons. c 2011 American Institute of Physics. [doi:10.1063/1.3573565]