CW AND FEMTOSECOND OPTICAL NONLINEARITIES OF TYPE-II QUANTUM-WELLS

被引：24

作者：

OLBRIGHT, GR

FU, WS

OWYOUNG, A

KLEM, JF

BINDER, R

GALBRAITH, I

KOCH, SW

机构：

[1] UNIV ARIZONA,CTR OPT SCI,TUCSON,AZ 85721

[2] UNIV ARIZONA,DEPT PHYS,TUCSON,AZ 85721

[3] STANFORD UNIV,SOLID STATE ELECTR LAB,STANFORD,CA 94305

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.66.1358

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Femtosecond time-resolved and quasi-cw measurements of optical nonlinearities of type-II GaAs/AlAs quantum wells are reported. A pronounced blueshift of the heavy-hole exciton is observed, which develops on a 100-ps time scale after resonant interband excitation. The experimental observations are analyzed using many-body theory, explaining exciton blueshift and dynamical evolution in terms of electron-hole Coulomb enhancement, hole-phase-space filling, and hole-plasma cooling.

引用

页码：1358 / 1361

页数：4

共 15 条

[1]

[Anonymous], 1990, QUANTUM THEORY OPTIC

[2] SUBPICOSECOND REAL-SPACE CHARGE-TRANSFER IN TYPE-II GAAS/ALAS SUPERLATTICES [J].