Balciunas T, Fourcade-Dutin C, Fan G, Witting T, Voronin A A, Zheltikov A M, Gerome F, Paulus G G, Baltuska A, Benabid F
Institute of Photonics, Vienna University of Technology, Gusshausstrasse 27/387, 1040 Vienna, Austria.
GPPMM Group, XLIM Research Institute, CNRS UMR 7252, University of Limoges, 87060 Limoges, France.
Nat Commun. 2015 Jan 27;6:6117. doi: 10.1038/ncomms7117.
Over the past decade intense laser fields with a single-cycle duration and even shorter, subcycle multicolour field transients have been generated and applied to drive attosecond phenomena in strong-field physics. Because of their extensive bandwidth, single-cycle fields cannot be emitted or amplified by laser sources directly and, as a rule, are produced by external pulse compression-a combination of nonlinear optical spectral broadening followed up by dispersion compensation. Here we demonstrate a simple robust driver for high-field applications based on this Kagome fibre approach that ensures pulse self-compression down to the ultimate single-cycle limit and provides phase-controlled pulses with up to a 100 μJ energy level, depending on the filling gas, pressure and the waveguide length.
在过去十年中，已经产生了具有单周期持续时间甚至更短的亚周期多色场瞬态的强激光场，并将其应用于驱动强场物理中的阿秒现象。由于其广泛的带宽，单周期场不能由激光源直接发射或放大，通常是通过外部脉冲压缩产生的——非线性光谱展宽后接色散补偿的组合。在此，我们展示了一种基于这种 Kagome 光纤方法的用于高场应用的简单稳健驱动器，该驱动器可确保脉冲自压缩至最终的单周期极限，并根据填充气体、压力和波导长度提供能量高达 100 μJ 的相位可控脉冲。
