EFFECT OF FINITE BANDWIDTH ON REFRACTIVE-INDEX ENHANCEMENT AND LASING WITHOUT INVERSION

被引：54

作者：

SULTANA, S

ZUBAIRY, MS

机构：

[1] Department of Electronics, Quaid-i-Azam University, Islamabad

来源：

PHYSICAL REVIEW A | 1994年 / 49卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.49.438

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have studied the effect of finite bandwidth of the driving field on the enhancement of refractive index and lasing without inversion in a three-level atomic system in which partial coherence is introduced either in upper-level or lower-level doublet via a strong microwave driving field having finite bandwidth. We find that both phenomena are adversely affected by the phase fluctuations in the driving field. Further, there is a range of driving field detuning for which the refractive index is considerably enhanced with vanishing absorption.

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页码：438 / 448

页数：11

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