Zeptosecond precision pulse shaping
Zeptosecond precision pulse shaping
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DOI：
10.1364/oe.19.011638
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发表时间：
2011-06-06
期刊：
影响因子：
3.8
通讯作者：
Baumert, Thomas
中科院分区：
文献类型：
--
作者：
Koehler, Jens;Wollenhaupt, Matthias;Baumert, Thomas
我们研究了通过脉冲整形技术生成超短激光脉冲对的时间精度。为此，我们将飞秒偏振脉冲整形器与偏振器相结合，并采用两个线性光谱相位掩模来模拟超稳定共路径干涉仪。在全光学实验中，我们研究了两个时间延迟脉冲产生的干涉信号。我们的结果显示，脉冲间延迟的 2 西格玛精度为 300 zs = 300 x 10(-21) s。平均值的标准差为 11 zs。所获得的精度相当于基于传统延迟级干涉仪的臂长变化 0.45 埃。我们将这些精确生成的脉冲对应用于强场量子控制实验。演示了通过几个阿秒时间尺度上的时间相位不连续性进行光子锁定来实现超快电子动力学的相干控制。 (C) 2011 美国光学学会
We investigate the temporal precision in the generation of ultrashort laser pulse pairs by pulse shaping techniques. To this end, we combine a femtosecond polarization pulse shaper with a polarizer and employ two linear spectral phase masks to mimic an ultrastable common-path interferometer. In an all-optical experiment we study the interference signal resulting from two temporally delayed pulses. Our results show a 2 sigma-precision of 300 zs = 300 x 10(-21) s in pulse-to-pulse delay. The standard deviation of the mean is 11 zs. The obtained precision corresponds to a variation of the arm's length in conventional delay stage based interferometers of 0.45 angstrom. We apply these precisely generated pulse pairs to a strong-field quantum control experiment. Coherent control of ultrafast electron dynamics via photon locking by temporal phase discontinuities on a few attosecond timescale is demonstrated. (C) 2011 Optical Society of America