Optical Ramsey interference and its performance in D1 line excitation in rubidium vapor for implementation of a vapor cell clock

Gour S. Pati, Fredrik K. Fatemi, Mark Bashkansky, Selim M Shahriar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Pulsed coherent population trapping in atomic vapor provides a convenient method for generating frequency narrowed atomic resonance using Ramsey interference. Here, we present our experimental results showing high-contrast and sub-kilohertz Ramsey interference fringes produced by coherently prepared 85Rb atoms using Raman excitation formed in D1 line transitions. A test system for atomic clock has been constructed to measure light shift for both continuous and pulsed Raman excitation cases. Our measurements show that light shift measured using pulsed Raman excitation, is reduced compared to the continuous excitation case. Our ability to measure light shift is currently limited by the resolution of the frequency counter, and performance of the locking electronics used.

Original languageEnglish (US)
Title of host publicationAdvances in Slow and Fast Light IV
Volume7949
DOIs
StatePublished - May 13 2011
EventAdvances in Slow and Fast Light IV - San Francisco, CA, United States
Duration: Jan 23 2011Jan 25 2011

Other

OtherAdvances in Slow and Fast Light IV
Country/TerritoryUnited States
CitySan Francisco, CA
Period1/23/111/25/11

Keywords

  • atomic clock
  • coherent population trapping
  • Ramsey interference
  • rubidium vapor

ASJC Scopus subject areas

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

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