4.35% spectral purity
By regulating the pre-formed plasma with a cavity-confined target, higher spectral purity than flat targets is achieved in a dual-pulse scheme, with slow decay even at extended delays.
Wen, Zhilin · Xie, Zhuo · Qi-Jin, Zhang · Shaokang, Wang · Zhenwei, Pu · Song, Xiaowei · Dou, Yinping · Li, Bochao · Pan, Qikun · Chen, Fei · Zhao, Chongxiao · Yan, Xing · Lin, Jingquan
Optics Express 2025
Spectral purity of the cavity-confined target drops slowly with extended delays, remaining comparable to the flat target's peak value