Laser-induced damage in optical materials: 1997 : 29th annual Boulder Damage Symposium : proceedings : 6-8 October, 1997, Boulder, Colorado / editors, Exarhos, Gregory J. ... [et al.] ; sponsor, Lawrence Livermore National Laboratory ... [et al.] ; published by SPIE, the International Society for Optical Engineering / Bellingham (Wash.) : SPIE, the International Society for Optical Engineering , cop. 1998