短Laser脉冲选择性强场增强和抑制电离
Selective Strong-Field Enhancement and Suppression of Ionization with Short Laser Pulses
摘要：
我们实验证明了强大的选择性激发和衰减的原子里德伯能级人口在钠蒸汽（Na I）使用强激光脉冲在强场极限（$> 10^{12} W/cm^{2}$）。对于高于势垒电离强度的强度，实现了原子布居和相关电离通道的相干控制。一个定性的模型预测，这种强场相干控制产生的弗里曼共振的表现。
英文摘要：
We experimentally demonstrate robust selective excitation and attenuation of atomic Rydberg level populations in sodium vapor (Na I) using intense laser pulses in the strong field limit ($> 10^{12} W/cm^{2}$). The coherent control of the atomic population and related ionization channels is realized for intensities above the over-the-barrier ionization intensity. A qualitative model predicts that this strong field coherent control arises through the manifestation of a Freeman resonance.
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