LUMINESCENCE AND INTERSUBBAND EXCITATIONS IN HIGH-DENSITY 2-DIMENSIONAL ELECTRON GASES

被引：12

作者：

PERIC, H

JUSSERAND, B

RICHARDS, D

ETIENNE, B

机构：

[1] UNIV CAMBRIDGE,CAVENDISH LAB,CAMBRIDGE CB3 0HE,ENGLAND

[2] LAB MICROSTRUCT & MICROELECTR,F-92220 BAGNEUX,FRANCE

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.47.12722

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report a detailed analysis of both luminescence and electronic Raman-scattering results in modulation-doped single quantum wells. Wave-vector nonconservation in the electron-hole recombination process is demonstrated in these highly doped systems. We also observe, in both polarizations, surprisingly intense Raman lines in addition to the collective excitations of the electron gas. The single-particle character of these lines is proved from the analysis of their dispersion and line shape as a function of the Raman in-plane wave vector.

引用

页码：12722 / 12726

页数：5