@article {2327, title = {In situ accurate determination of the zero time delay between two independent ultrashort laser pulses by observing the oscillation of an atomic excited wave packet}, journal = {Optics Letters}, volume = {33}, number = {16}, year = {2008}, note = {ISI Document Delivery No.: 347BHTimes Cited: 0Cited Reference Count: 12Zhang, Qun Hepburn, John W.}, month = {Aug}, pages = {1893-1895}, type = {Article}, abstract = {We propose a novel method that uses the oscillation of an atomic excited wave packet observed through a pump-probe technique to accurately determine the zero time delay between a pair of ultrashort laser pulses. This physically based approach provides an easy fix for the intractable problem of synchronizing two different femtosecond laser pulses in a practical experimental environment, especially where an in situ time zero measurement with high accuracy is required. (C) 2008 Optical Society of America.}, keywords = {ADIABATIC PASSAGE, MOLECULES, POPULATION TRANSFER}, isbn = {0146-9592}, url = {://000259113300040}, author = {Zhang, Q. and Hepburn, J. W.} }