Abstract
With the aim of performing Fourier transform spectroscopy in the soft X-ray region, we examined the feasibility of a conventional diffraction grating as a beam splitter in the wavelength range of 1–10 nm. The basic idea of the present research is that the divided positive- and negative-order diffraction beams can be used in X-ray interferometric experiments. We performed a beam-dividing test using a diffraction grating. The grating parameter was chosen by taking into account the geometrical restriction for the negative-order diffraction and the equivalent diffraction efficiency for both light orders. However, we could not detect the negative-order light by using the selected diffraction grating.
