Quasiadiabatic following of femtosecond optical pulses in a weakly excited semiconductor

被引：74

作者：

Melnikov, IV

Mihalache, D

Moldoveanu, F

Panoiu, NC

机构：

[1] INST ATOM PHYS, DEPT THEORET PHYS, R-76900 BUCHAREST, ROMANIA

[2] UNIV JENA, INST FESTKORPERTHEORIE & THEORET OPT, D-07743 JENA, GERMANY

[3] UNIV MARYLAND, DEPT PHYS, COLLEGE PK, MD 20781 USA

[4] NYU, DEPT PHYS, NEW YORK, NY 10003 USA

来源：

PHYSICAL REVIEW A | 1997年 / 56卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.56.1569

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Using semiconductor Maxwell-Bloch equations, we analyze the response of an ensemble of is excitons driven by a femtosecond optical pulse beyond the traditional approach of slowly varying amplitudes and phases. For optical pulses of a given duration, we show that the off-resonance optical field can evolve into a stable soliton. Besides hyperbolic-secant solitons, we find a single soliton with nonzero asymptotics that is stable against low-amplitude perturbations and whose form is not affected by collisions.

引用

页码：1569 / 1576

页数：8

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