Optimization of the noise property of delayed light in electromagnetically induced transparency

Junxiang Zhang*, Jin Cai, Yunfei Bai, Jiangrui Gao, Shi Yao ZHU

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

One of the important applications of electromagnetically induced transparency (EIT) is to delay and store light in atomic ensembles. In this paper, the noise spectrum of the delayed quantum light throughout an EIT medium is investigated. With zero detection frequency, we can have minimum noise of delayed light in two-photon resonance of EIT, and the noise is larger than the minimum noise at off two-photon resonance due to the phase-to-amplitude noise conversion. It is shown that the noise for nonzero detection frequency can be suppressed by operating the system at off two-photon resonance, even when the unavoidable dephasing is included.

Original languageEnglish
Article number033814
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume76
Issue number3
DOIs
Publication statusPublished - 14 Sep 2007

Scopus Subject Areas

  • Atomic and Molecular Physics, and Optics

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