Schütte Bernd, Frühling Ulrike, Wieland Marek, Azima Armin, Drescher Markus
Universität Hamburg, Institut für Experimentalphysik and Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761 Hamburg, Germany.
Opt Express. 2011 Sep 26;19(20):18833-41. doi: 10.1364/OE.19.018833.
We report on transferring the concept of light-field streaking with intense terahertz fields from free-electron lasers to the laboratory scale. Utilizing a commercial laser system, synchronized 300 μm terahertz and 13 nm extreme ultraviolet pulses are generated by optical rectification and high harmonic generation, respectively. The terahertz fields are sufficiently strong to support electron wave packet sampling with a few fs resolution. The capability of this approach is demonstrated by measuring the duration of electron pulses formed by direct photoemission from a neon gas target.
我们报告了将强太赫兹场的光场条纹概念从自由电子激光转移到实验室规模的情况。利用商用激光系统，分别通过光整流和高次谐波产生同步的300μm太赫兹脉冲和13nm极紫外脉冲。太赫兹场足够强，能够以几飞秒的分辨率支持电子波包采样。通过测量从氖气靶直接光发射形成的电子脉冲的持续时间，证明了这种方法的能力。
