A STUDY ON ELECTROABSORPTION EFFECTS IN COUPLED QUANTUM-WELLS

被引:3
作者
CHAN, YC
TADA, K
机构
[1] Department of Electronic Engineering, The University of Tokyo, Hongo , Tokyo
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1993年 / 32卷 / 1B期
关键词
COUPLED QUANTUM WELLS; FIELD-INDUCED DECOUPLING EFFECT; EXCITON; ENERGY SPLITTING; ELECTROABSORPTION EFFECT; TE-MODES AND TM-MODES;
D O I
10.1143/JJAP.32.536
中图分类号
O59 [应用物理学];
学科分类号
摘要
Field-induced effects of optical absorption in coupled quantum wells, comprising two GaAs-AlAs quantum wells separated by a thin AlAs barrier, have been studied. The coupled system evolves into an uncoupled one, leading to large variations of the absorption coefficient at the absorption edge through the field-induced decoupling effect. The large linear shift of the quantum energy levels and an effective blue shift of the absorption edge with electric field lead to unique polarization and wavelength dependence of the electroabsorption effect.
引用
收藏
页码:536 / 539
页数:4
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