Photon echoes generated by reversing magnetic field gradients in a rubidium vapor

G. Hétet, M. Hosseini, B. M. Sparkes, D. Oblak, P. K. Lam, B. C. Buchler

Research output: Contribution to journalArticlepeer-review

96 Scopus citations

Abstract

We propose a photon echo quantum memory scheme using detuned Raman coupling to long-lived ground states. In contrast to previous three-level schemes based on controlled reversible inhomogeneous broadening that use sequences of IT pulses, the scheme does not require accurate control of the coupling dynamics to the ground states. We present a proof-of-principle experimental realization of our proposal using rubidium atoms in a warm vapor cell. The Raman resonance line is broadened using a magnetic field that varies linearly along the direction of light propagation. Inverting the magnetic field gradient rephases the atomic dipoles and re-emits the light pulse in the forward direction.

Original languageEnglish (US)
Pages (from-to)2323-2325
Number of pages3
JournalOptics Letters
Volume33
Issue number20
DOIs
StatePublished - Oct 15 2008

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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