TY - JOUR AU - O. Cohen AU - Margaret Murnane AU - Henry Kapteyn AU - Mordechai Segev BT - Optics Letters DA - 2006-04 DO - 10.1364/OL.31.000954 PY - 2006 EP - 954 T2 - Optics Letters TI - Cross-phase-modulation nonlinearities and holographic solitons in periodically poled photovoltaic photorefractives VL - 31 SN - 0146-9592 ER -