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
收藏
页码：1569 / 1576
页数：8
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