Electromagnetically induced blazed grating at low light levels

被引：31
|
作者：
Carvalho, Silvania A. [1 ]
de Araujo, Luis E. E. [1 ]
机构：
[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Sao Paulo, Brazil
来源：
PHYSICAL REVIEW A | 2011年 / 83卷 / 05期
基金：
巴西圣保罗研究基金会;
关键词：
INDUCED TRANSPARENCY;
D O I：
10.1103/PhysRevA.83.053825
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose a scheme for inducing a blazed transmission grating in a four-level, N-type atomic medium under electromagnetically induced transparency (EIT). The blazed grating relies on the giant Kerr nonlinearity that the atomic medium exhibits under EIT. The grating is created using an intensity mask in one of the driving optical fields and only weak fields with intensities below saturation level are involved. Diffraction efficiencies of a resonant probe beam close to 100% are predicted.
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页数：6
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