ANISOTROPY IN PHOTOLUMINESCENCE AND ABSORPTION-SPECTRA OF FRACTIONAL LAYER SUPERLATTICES

被引：19

作者：

KASU, M

ANDO, H

SAITO, H

FUKUI, T

机构：

[1] NTT Basic Research Laboratories, Tokyo 180

来源：

APPLIED PHYSICS LETTERS | 1991年 / 59卷 / 03期

关键词：

D O I：

10.1063/1.105577

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Polarization-dependent photoluminescence (PL) and optical absorption spectra of (AlAs)1/2(GaAs)1/2 and (Al0.5Ga0.5As)1/2(GaAs)1/2 fractional layer superlattices (FLSs) were measured at room temperature. For the first time, it was observed that the spectra are dependent on their polarizations. The anisotropies in the PL and absorption spectra show that quantum confinement unambiguously occurs in the direction parallel to the surface, i.e., lateral quantum carrier confinement effect appears. This finding proves that FLSs are promising for novel optical devices.

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页码：301 / 303

页数：3

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