论文标题
1-MHz的1.7周期多板压缩在35 w平均输出功率下的操作
1-MHz operation of 1.7-cycle multiple plate compression at 35-W average output power
论文作者
论文摘要
我们通过使用具有80 w平均输入功率的YB激光脉冲的两阶段多板连续压缩，以1 MHz的重复速率以1 MHz的重复速率生成了1.7周期和35- $ $ J脉冲。通过仔细考虑由于高平均功率而仔细考虑热透镜效应的板位置，我们仅通过仅使用群 - - 折线 - 分散补偿来压缩184-Fs初始持续时间至5.7 fs。该脉冲达到了足够的光束质量（$ m^2 $ <1.5），达到了10 $^{14} $ w/cm $^2 $的重点强度，并且高空间谱同质性（98％）。我们的研究对MHz均匀的近心脉冲来源有望，用于先前具有前所未有的高信噪比比率的高级光谱和成像技术。
We generated 1.7-cycle and 35-$μ$J pulses at a 1-MHz repetition rate by using two-stage multiple plate continuum compression of Yb-laser pulses with 80-W average input power. By adjusting the plate positions with careful consideration of the thermal lensing effect due to the high average power, we compressed the output pulse with a 184-fs initial duration to 5.7 fs by using only group-delay-dispersion compensation. This pulse achieved a sufficient beam quality ($M^2$ < 1.5) reaching a focused intensity over 10$^{14}$ W/cm$^2$ and a high spatial-spectral homogeneity (98%). Our study holds promise for a MHz-isolated-attosecond-pulse source for advanced attosecond spectroscopic and imaging technologies with unprecedentedly high signal-to-noise ratios.
