用于用户应用的高通量相干极紫外脉冲源。
High-flux source of coherent XUV pulses for user applications.
作者信息
Hort O, Albrecht M, Nefedova V E, Finke O, Mai D D, Reyné S, Giambruno F, Frassetto F, Poletto L, Andreasson J, Gautier J, Sebban S, Nejdl J
出版信息
Opt Express. 2019 Mar 18;27(6):8871-8883. doi: 10.1364/OE.27.008871.
We present experimental results obtained at a user-oriented XUV beamline implemented at the ELI Beamlines facility. The coherent XUV radiation is produced via high harmonic generation in gases in a loose focusing geometry. The beamline is designed to be driven by 1 kHz, 100 mJ, 20 fs pulses centered at a wavelength of 830 nm. Results such as XUV spectra, beam wavefront and pulse energy obtained during the beamline commissioning with a commercial 1 kHz, 5 mJ, 40 fs laser system are presented. A unique XUV spectrometer for source characterization designed to reach a very high sensitivity is described in detail, and we demonstrate a novel technique for single-shot and every-shot XUV pulse energy measurement.
我们展示了在欧洲激光基础设施光束线设施中实施的面向用户的极紫外光束线上获得的实验结果。相干极紫外辐射是通过气体中的高次谐波产生，采用宽松聚焦几何结构。该光束线设计为由波长为830nm、中心频率为1kHz、能量为100mJ、脉宽为20fs的脉冲驱动。展示了在使用商用1kHz、5mJ、40fs激光系统对光束线进行调试期间获得的极紫外光谱、光束波前和脉冲能量等结果。详细描述了一种用于源表征的独特极紫外光谱仪，其设计达到了非常高的灵敏度，并且我们展示了一种用于单次和每次极紫外脉冲能量测量的新技术。
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