Ultraviolet surprise: Efficient soft x-ray high-harmonic generation in multiply ionized plasmas

D. Popmintchev, C. Hernandez-Garcia, F. Dollar, C. Mancuso, J. A. Perez-Hernandez, M.-C. Chen, A. Hankla, X. Gao, B. Shim, A. L. Gaeta, M. Tarazkar, D. A. Romanov (+10 others)
2015 Science  
doi:10.1126/science.aac9755 pmid:26785483 fatcat:mm66qiywc5hnxpfbmu6jswpgn4