Fig. 7: CSS accuracy analysis.
From: Ultra-broadband diffractive imaging with unknown probe spectrum
a–e show the calculated CSS from the noised broadband patterns with varying detector noises ranging from 60 dB to 20 dB with 10 dB interval, respectively. f compares the MSE between the fitted broadband patterns generated from the calculated CSSs in a–e with the ground-truth spectrum, while varying the spectral sampling numbers. g A presentive shot of coherent diffraction pattern at 13.5 nm with 40 dB detector noise. h. The broadband diffraction pattern generated from the broadband HHG source in ground-truth with 600 discrete sampling points (black scatters in Fig. 6a), while the corresponding fitted broadband pattern from the calculated CSS under a noisy condition in e is presented in i, and its corresponding fitting error is displayed in j
