(a) Schematic of the formation of an X-ray mirage. The plasma acts like a convex lens, refracting a portion of the X-ray laser beam. An imaginary source, displaced from the position of the original source, is formed.
(b) Interference fringes of the X-ray laser obtained at the detector position.
(c) Comparison of the experimental fringes with the calculated result.
(d), (e) We reproduced the imaginary source by theoretical modeling based on the experimental result.
(d) Spatial profile of the imaginary source in the X－Y plane.
(e) Spatial profile in the Y－Z plane.