Generation of tunable 1879-196-nm radiation in ?-BaB_2O_4:?errata Bhar, G. C. ; Chatterjee, U. ; Rudra, A. M. ; Kumbhakar, P. ; Route, R. K. ; Feigelson, R. S. Abstract Publication: Optics Letters Pub Date: February 1998 DOI: 10.1364/OL.23.000310 Bibcode: 1998OptL...23..310B