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PHOTOEMISSION WITH LASER-GENERATED HARMONICS TUNABLE TO 80 EV

机译:带有激光谐波的光调制可调节至80 EV

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摘要

I describe the generation of broadly tunable harmonic photons with energies to 80 eV hom a laser system that produces 200-fs pulses of 0.5-mJ 610-nm light at a repetition rate of 540 Hz. The harmonics are produced by focusing of the 610-nm light into high densities of rare gas atoms produced at the output of a pulsed valve. Harmonic photons are wavelength selected by a grazing incidence toroidal grating and refocused onto samples that reside in a vacuum analysis chamber. Valence and atomic core-level photoemission spectra generated with this light are described. (C) 1996 Optical Society of America [References: 18]
机译:我描述了能量高达80 eV的宽可调谐波光子的产生,该激光系统以540 Hz的重复频率产生200 fs的0.5 mJ 610 nm光脉冲。谐波是通过将610 nm的光聚焦成高密度的稀有气体原子而产生的,该稀有气体原子在脉冲阀的输出端产生。谐波光子由掠入射环形光栅选择波长,然后重新聚焦到位于真空分析室中的样品上。描述了用这种光产生的价和原子核能级的光发射光谱。 (C)1996年美国眼镜学会[参考文献:18]

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