High-resolution Rb two-photon spectroscopy with ultrafast lasers

T. H. Yoon, A. Marian, J. L. Hall, J. Ye

Research output: Contribution to journalConference articlepeer-review


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.

Original languageEnglish
Pages (from-to)50-58
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2001
Externally publishedYes
EventLaser Frequency Stabilization, Satandards, Measurement, and Applications - San Jose, CA, United States
Duration: 2001 Jan 242001 Jan 26


  • Femtosecond comb
  • Frequency stabilization of fs laser
  • Quantum interference
  • Two-photon spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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