Single-order soft x-ray spectra with spectroscopic photon sieve
Gao Yu-Lin1, 2, Wei Lai3, Zhang Qiang-Qiang3, Yang Zu-Zua3, Zhou Wei-Min3, Cao Lei-Feng3, †
       

Microstructure of fabricated SPS, with gold substrate thickness being 400 nm, the period 1000 nm, and the hole diameter nearly 500 nm.