Harmonic generation in solids with direct fiber laser pumping Lee, Kevin F. ; Ding, Xiaoyan ; Hammond, T. J. ; Fermann, M. E. ; Vampa, G. ; Corkum, P. B. Abstract Publication: Optics Letters Pub Date: March 2017 DOI: 10.1364/OL.42.001113 Bibcode: 2017OptL...42.1113L