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Effects of the carrier-envelope phase of chirped laser pulses in the multiphoton ionization regime

机译:photo激光脉冲的载流子包络相在多光子电离体系中的影响

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摘要

By solving the time-dependent Schrodinger equation for the Cs atom, we find that, as long as the spectralbandwidth is sufficiently broad, the asymmetry of photoelectron ejection is strongly phase dependent and persists even when the chirped pulse duration becomes more than several cycles. The asymmetry survives even after the angle integration over the hemisphere, implying that the detection efficiency can be significantly improved. This counterintuitive and robust finding provides a simple way to measure the phase for both transform-limited and chirped pulses.
机译:通过求解Cs原子随时间变化的Schrodinger方程,我们发现,只要光谱带宽足够宽,光电子喷射的不对称性就与相位密切相关,即使even脉冲持续时间超过几个周期,这种非对称性也会持续存在。即使在半球上进行角度积分之后,不对称性仍然存在,这意味着可以显着提高检测效率。这种违反直觉和鲁棒性的发现提供了一种简单的方法来测量变换限制脉冲和线性调频脉冲的相位。

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