Enhanced photorefractive properties of Bi-doped Sn_2P_2S_6 Kedyk, Ihor V. ; Mathey, Pierre ; Gadret, Gregory ; Bidault, Olivier ; Grabar, Alexander A. ; Stoika, Ivan M. ; Vysochanskii, Yulian M. Abstract Publication: Journal of the Optical Society of America B Optical Physics Pub Date: 2008 DOI: 10.1364/JOSAB.25.000180 Bibcode: 2008JOSAB..25..180K