XUV spectral compression scheme: (IMAGE)

Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI)

XUV spectral compression scheme:

Caption

Fig. 2: XUV spectral compression scheme: The refractive index as a function of the photon energy is shown by the red dashed curve. In the region around 9.2 eV it changes comparably slowly (left side), whereas it changes very fast in the region around 12.365 eV. Therefore, a broadband absorption (blue area) can lead to a narrowband emission (violet area) with the help of two visible photons (shown by the arrows).

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Copyright: MBI

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