ENHANCED INDEX OF REFRACTION - A COMPARISON BETWEEN 2-LEVEL AND 3-LEVEL SYSTEMS

被引：68

作者：

WILSONGORDON, AD

FRIEDMANN, H

机构：

[1] Department of Chemistry, Bar-Ilan University, Ramat Gan

来源：

OPTICS COMMUNICATIONS | 1992年 / 94卷 / 04期

关键词：

D O I：

10.1016/0030-4018(92)90020-R

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We show that the phenomena of enhancement of the refractive index and third-order susceptibility at a point of vanishing absorption, recently described in multilevel systems, are also present in two-level systems interacting with a strong pump and a weak to moderately strong probe laser. In addition we show that in the three-level system discussed by Scully and Zhu, the refractive index can be enhanced even when the probe is of comparable intensity to the pump. In both systems, the effects can be increased by detuning the pump.

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页码：238 / 244

页数：7

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