Lindner F, Schätzel M G, Walther H, Baltuska A, Goulielmakis E, Krausz F, Milosević D B, Bauer D, Becker W, Paulus G G
Max-Planck-Institut für Quantenoptik, Garching, Germany.
Phys Rev Lett. 2005 Jul 22;95(4):040401. doi: 10.1103/PhysRevLett.95.040401. Epub 2005 Jul 19.
A new scheme for a double-slit experiment in the time domain is presented. Phase-stabilized few-cycle laser pulses open one to two windows (slits) of attosecond duration for photoionization. Fringes in the angle-resolved energy spectrum of varying visibility depending on the degree of which-way information are measured. A situation in which one and the same electron encounters a single and a double slit at the same time is observed. The investigation of the fringes makes possible interferometry on the attosecond time scale. From the number of visible fringes, for example, one derives that the slits are extended over about 500 as.
提出了一种时域双缝实验的新方案。相位稳定的少周期激光脉冲开启了持续时间为阿秒的一到两个窗口（狭缝）用于光电离。测量了角度分辨能谱中取决于路径信息程度的可见度变化的条纹。观察到一个电子同时遇到单缝和双缝的情况。对条纹的研究使得在阿秒时间尺度上进行干涉测量成为可能。例如，从可见条纹的数量可以推断出狭缝的扩展长度约为500阿秒。
