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

被引：89

作者：

Hetet, G. ^{[1
]}

Hosseini, M. ^{[1
]}

Sparkes, B. M. ^{[1
]}

Oblak, D. ^{[1
,2
]}

Lam, P. K. ^{[1
]}

Buchler, B. C. ^{[1
]}

机构：

[1] Australian Natl Univ, Australian Res Council Ctr Excellence Quantum Ato, Canberra, ACT 0200, Australia

[2] Univ Copenhagen, Niels Bohr Inst, Danish Natl Res Council Ctr Quantum Opt QUANTOP, DK-2100 Copenhagen, Denmark

来源：

OPTICS LETTERS | 2008年 / 33卷 / 20期

基金：

澳大利亚研究理事会;

关键词：

D O I：

10.1364/OL.33.002323

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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 pi 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. (C) 2008 Optical Society of America

引用

页码：2323 / 2325

页数：3

共 17 条

[1] Quantum-state transfer between fields and atoms in electromagnetically induced transparency [J].