TY - JOUR AU - L Ma AU - R Shelton AU - H Kapteyn AU - M Murnane AU - Jun Ye C2 - Physical Review A (Atomic, Molecular and Optical Physics) DA - 2001-01-01 00:01:00 LA - en M1 - 64 PB - Physical Review A (Atomic, Molecular and Optical Physics) PY - 2001 TI - Sub-10-femtosecond active synchronization between two passively mode-locked Ti:sapphire oscillators ER -