Fast-responding nonlinear phase shifter using a signal-wave gain medium

被引：13

作者：

Jiang, K. J. ^{[1
,2
]}

Deng, L. ^{[1
]}

Hagley, E. W. ^{[1
]}

Payne, M. G. ^{[3
]}

机构：

[1] Natl Inst Stand & Technol, Div Electron & Opt Phys, Gaithersburg, MD 20899 USA

[2] Chinese Acad Sci, Wuhan Inst Phys & Math, Ctr Cold Atom Phys, Wuhan 200062, Peoples R China

[3] Bowling Green State Univ, Dept Phys, Bowling Green, OH 43403 USA

来源：

PHYSICAL REVIEW A | 2008年 / 77卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.77.045804

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Using a full density matrix formalism we show that for a lifetime broadened four-level scheme with a signal wave gain medium a large nonlinear phase shift can be induced without signal wave slowdown and attenuation. In this system the signal wave acquires a large nonlinear phase shift and travels with superluminal propagation characteristics. This raises the possibility of rapidly responding nonlinear phase shifting and possibly phase gating devices for information science.

引用

页数：3

共 13 条

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