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.
引用
收藏
页码:L1018 / L1020
页数:3
相关论文
共 13 条
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