Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Zhigang Zhang and K. Kobayashi and Kenji Torizuka and Takeyoshi Sugaya and T. Nakagawa,Gold-reflector-based semiconductor saturable absorber mirror for femtosecond mode-locked Cr4+:YAG lasers,Applied Physics B,0946-2171,Springer Science and Business Media LLC,2000-06-01,70,,S59-S62,https://cir.nii.ac.jp/crid/1872835442645692544,https://doi.org/10.1007/s003400000328