Pii: s0925-3467(02)00003-4
Y. Kalisky a,*, C. Labbe a, K. Waichman a,b, L. Kravchik a, U. Rachum a,a ‘‘Arava’’ Laser Laboratory, Rotem Industrial Park, D.N. Arava, Mishor Yamin 86800, Israelb Laser Department, NuclearResearch Centre Negev, P.O. Box 9001, Beer Sheva 89140, Israelc Crystal Laboratory, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences,Received 29 June 2001; received i