9 September 2019Diffraction gratings with two orders of magnitude-enhanced dispersion rate for sub-meV-resolution soft x-ray spectroscopy (Conference Presentation)
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Large angular dispersion rate of the diffraction gratings is essential
for the high spectral resolution of the grating spectrometers. The
greatest challenge is achieving the desired performance of the
diffraction gratings at short wavelengths. Here we show that crystals
can function as high-reflectance soft x-ray diffraction gratings with
dispersion rates at least two orders of magnitude larger than what is
presently possible with state-of-the-art man-made gratings. This may
open up new opportunities in designing and implementing soft x-ray
resonant inelastic scattering (RIXS) spectrometers with spectral
resolution improved by up to two orders of magnitude, which may
further advance a very dynamic filed of the RIXS
spectroscopy.
Yuri V. Shvyd'ko
"Diffraction gratings with two orders of magnitude-enhanced dispersion rate for sub-meV-resolution soft x-ray spectroscopy (Conference Presentation)", Proc. SPIE 11108, Advances in X-Ray/EUV Optics and Components XIV, 111080M (9 September 2019); https://doi.org/10.1117/12.2529634
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Yuri V. Shvyd'ko, "Diffraction gratings with two orders of magnitude-enhanced dispersion rate for sub-meV-resolution soft x-ray spectroscopy (Conference Presentation)," Proc. SPIE 11108, Advances in X-Ray/EUV Optics and Components XIV, 111080M (9 September 2019); https://doi.org/10.1117/12.2529634