Bapna, R. C.Rao, C. S.Dasgupta, K.2010-03-112010-03-112008http://hdl.handle.net/123456789/20653814 bytestext/htmlenOptical parametric oscillatorsThreshold energyCylindrical focusingLow-threshold operation of a 355-nm pumped nanosecond b-BaB2O4 optical parametric oscillatorArticle