OPTICAL SPECTROSCOPY OF A GAAS/ALGAAS QUANTUM-WIRE STRUCTURE USING NEAR-FIELD SCANNING OPTICAL MICROSCOPY

被引：143

作者：

GROBER, RD

HARRIS, TD

TRAUTMAN, JK

BETZIG, E

WEGSCHEIDER, W

PFEIFFER, L

WEST, K

机构：

[1] ATandT Bell Laboratories, Murray Hill, NJ 07974

来源：

APPLIED PHYSICS LETTERS | 1994年 / 64卷 / 11期

关键词：

D O I：

10.1063/1.111903

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the first spectroscopic study using a low temperature near-field scanning optical microscope. We have studied an array of GaAs/AlGaAs cleaved edge overgrowth quantum wires. The three luminescence peaks originate from different structures in the sample: The (001)-oriented multiple quantum wells, the (110)-oriented single quantum well, and the quantum wires. The linewidth of the quantum wire emission is related to roughness in the (110)-oriented single quantum well. Quenching of the multiple quantum wells and single quantum well emission near the quantum wires is attributed to diffusion of photoexcited carriers into the wires.

引用

页码：1421 / 1423

页数：3

共 5 条

[1] NEAR-FIELD OPTICS - MICROSCOPY, SPECTROSCOPY, AND SURFACE MODIFICATION BEYOND THE DIFFRACTION LIMIT
BETZIG, E
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[J]. SCIENCE, 1992, 257 (5067) : 189 - 195
[2] BREAKING THE DIFFRACTION BARRIER - OPTICAL MICROSCOPY ON A NANOMETRIC SCALE
BETZIG, E
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[3] GROBER RD, IN PRESS REV SCI INS
[4] FORMATION OF A HIGH-QUALITY 2-DIMENSIONAL ELECTRON-GAS ON CLEAVED GAAS
PFEIFFER, L
WEST, KW
STORMER, HL
EISENSTEIN, JP
BALDWIN, KW
GERSHONI, D
SPECTOR, J
[J]. APPLIED PHYSICS LETTERS, 1990, 56 (17) : 1697 - 1699
[5] LASING FROM EXCITONS IN QUANTUM WIRES
WEGSCHEIDER, W
PFEIFFER, LN
DIGNAM, MM
PINCZUK, A
WEST, KW
MCCALL, SL
HULL, R
[J]. PHYSICAL REVIEW LETTERS, 1993, 71 (24) : 4071 - 4074

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