Efficient 1645-nm Er:YAG laser Young, York E. ; Setzler, Scott D. ; Snell, Kevin J. ; Budni, Peter A. ; Pollak, Thomas M. ; Chicklis, E. P. Abstract Publication: Optics Letters Pub Date: May 2004 DOI: 10.1364/OL.29.001075 Bibcode: 2004OptL...29.1075Y