TY - JOUR AU - Benjamin Zwickl AU - M. Saffman AU - Dana Anderson BT - Physical Review Letters DA - Jan-08-1994 DO - 10.1103/PhysRevLett.73.818 PY - 1994 SP - 818 EP - 821 T2 - Physical Review Letters TI - Propagation of Light Beams in Photorefractive Media: Fanning, Self-Bending, and Formation of Self-Pumped Four-Wave-Mixing Phase Conjugation Geometries VL - 73 SN - 0031-9007 ER -