Super efficient absorption filter for quantum memory using atomic ensembles in a vapor

Alexander Heifetz*, Ashish Agarwal, George C. Cardoso, Venkatesh Gopal, Prem Kumar, M. S. Shahriar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We demonstrate how a natural rubidium vapor cell can efficiently filter out a pump beam that produces an Raman gain in the stimulated Raman process at the D2 line of 85Rb. We observe a Raman gain of at least 12 dB in 85Rb when the pump beam is detuned below the first transition in 85Rb, while being exactly on-resonance with the first transition in 87Rb. With a single pass through a second cell, we observe an attenuation of at least 30 dB of the incoming pump at 2 mW, while the probe remained unaffected. This filtering process is critical to the realization of a single photon quantum memory based on vapor cells.

Original languageEnglish (US)
Pages (from-to)289-293
Number of pages5
JournalOptics Communications
Volume232
Issue number1-6
DOIs
StatePublished - Mar 1 2004

Keywords

  • Atomic
  • Ensambles
  • Memory
  • Quantum
  • Raman
  • Vapor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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