Slow light and EIT under realistic (imperfect) conditions

Mason Klein, Yanhong Xiao, Michael Hohensee, David F. Phillips, Ronald L. Walsworth

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


We report a preliminary experimental study of EIT and stored light in the high optieal depth regime. In particular, we characterize two ways to mitigate radiation trapping, a decoherence mechanism at high atomic density: nitrogen as buffer gas, and a long, narrow cell geometry. Initial results show the promise of both approaches in minimizing radiation trapping, but also reveal problems such as optical pumping into trapped end-states. We also observe distortion in EIT lineshapes at high optical depth, a result of interference from four-wave mixing. Experimental results are in good qualitative agreement with theoretical predictions.

Original languageEnglish (US)
Article number72260H
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2009
Externally publishedYes
EventAdvances in Slow and Fast Light II - San Jose, CA, United States
Duration: Jan 25 2009Jan 27 2009


  • Buffer gas
  • Electromagnetically-induced transparency
  • Four-wave mixing
  • Optical depth
  • Slow light
  • Stored light
  • Vapor cell

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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