Shen, Yingjie High-beam-quality operation of a 2 μm passively Q-switched solid-state laser based on a boron nitride saturable absorber. [electronic resource] - Applied optics Apr 2019 - 2546-2550 p. digital Publication Type: Journal Article ISSN: 1539-4522 Standard No.: 10.1364/AO.58.002546 doi