@conference{463, author = {T. Yoon and A. Marian and John Hall and Jun Ye}, title = {High-resolution Rb two-photon spectroscopy with ultrafast lasers}, abstract = {A two-photon transition in cold Rb atoms will be probed with a phase-coherent wide-bandwidth femtosecond laser comb. Frequency domain analysis yields a high resolution picture where phase coherence among various transition pathways through different intermediate states produces interference effects on the resonantly-enhanced transition probability. This result is supported by the time domain Ramsey interference effect. The two-photon transition spectrum is analyzed in terms of the pulse repetition rate and carrier frequency offset, leading to a cold-atom-based frequency stabilization scheme for both degrees of freedom of the femtosecond laser.}, year = {2001}, journal = {unknown}, month = {2001-03}, publisher = {SPIE}, address = {San Jose, CA}, doi = {10.1117/12.424486}, }