共 13 条
POST GROWTH FABRICATION OF GAAS/ALGAAS REFLECTION MODULATORS VIA IMPURITY FREE DISORDERING
被引:15
作者:
GHISONI, M
[1
]
PARRY, G
[1
]
PATE, M
[1
]
HILL, G
[1
]
ROBERTS, J
[1
]
机构:
[1] UNIV SHEFFIELD, DEPT ELECTR & ELECT ENGN, SHEFFIELD S1 3JD, S YORKSHIRE, ENGLAND
来源:
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS
|
1991年
/
30卷
/
6A期
关键词:
GAAS/ALGAAS;
MULTIPLE QUANTUM WELL;
RAPID THERMAL ANNEALING;
IMPURITY FREE VACANCY DIFFUSION;
REFLECTION MODULATORS;
INTEGRATION;
D O I:
10.1143/JJAP.30.L1018
中图分类号:
O59 [应用物理学];
学科分类号:
摘要:
Disordering of GaAs/AlGaAs multiple quantum well asymmetric Fabry-Perot modulators (AFPM) was carried out using impurity free vacancy diffusion (IFVD), involving the deposition of a SiO2 cap followed by rapid thermal annealing at 930-degrees-C. Blue shifts of up to 52 meV, while maintaining clearly resolved heavy and light hole excitons, were achieved. This enabled the production of both normally-off (contrast > 10 dB for -5 V bias) and normally-on (reflection change > 30% for - 8V) AFPM's from the same wafer, thus displaying how IFVD can be used to tailor the optoelectronic properties after growth.
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页码:L1018 / L1020
页数:3
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