Single-order diffraction grating for soft x-ray: state of the art and perspective (Conference Presentation)

All conventional x-ray dispersive elements including multilayers, crystals and diffraction gratings provide multi-order diffraction spectra, which bring problems in spectroscopy application especially in the region of from VUV to soft x-ray region. The emergence of the so-called soft x-ray single-order diffraction grating (SXSDG) changed such a situation and may bring promised big benefits in lots of fields such as laser plasma diagnostics, x-ray astronomy, synchrotron radiation beam monochromatic; laser generated high harmonics and etc. In this presentation, the authors provid that the introduction of the concept of the so-called soft x-ray single-order diffraction grating, the evolution and development of such a new emergened dispersive elements, the state of the art and its application, the perspect and ets. A possible worldwide collaboration in future is also suggested.