Volume 115, Number 3, August 2016
|Number of page(s)||5|
|Section||Atomic, Molecular and Optical Physics|
|Published online||09 September 2016|
Noise correlations controlled by dressed suppression and enhancement
1 Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University - Xi'an 710049, China
2 Yunnan Open Key Lab of Mechanics, Pu'er University - Pu'er 665000, China
3 Electrical Engineering Department, Sukkur Institute of Business Administration - Air port Road, Sukkur 65200, Pakistan
Received: 13 July 2016
Accepted: 9 August 2016
The intensity noise correlations between anti-Stokes and Stokes fields, generated from spontaneous parametric four-wave mixing (SP-FWM) process have been investigated in a ladder-type three-level system of sodium atomic vapor. By introduction of an external dressing field, the strengthened (weakened) correlations are obtained under enhancement (suppression) condition of SP-FWM. Besides, sharp correlations have been obtained as attributed to a pair of non-classical beams generated from amplified spontaneous emission.
PACS: 32.50.+d – Fluorescence, phosphorescence (including quenching) / 42.50.Gy – Effects of atomic coherence on propagation, absorption, and amplification of light; electromagnetically induced transparency and absorption / 42.70.Mp – Nonlinear optical crystals
© EPLA, 2016
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