CR-DOPED GAAS/ALGAAS SEMIINSULATING MULTIPLE QUANTUM-WELL PHOTOREFRACTIVE DEVICES

被引:62
作者
PARTOVI, A [1 ]
GLASS, AM [1 ]
OLSON, DH [1 ]
ZYDZIK, GJ [1 ]
OBRYAN, HM [1 ]
CHIU, TH [1 ]
KNOX, WH [1 ]
机构
[1] AT&T BELL LABS,HOLMDEL,NJ 07733
关键词
D O I
10.1063/1.108934
中图分类号
O59 [应用物理学];
学科分类号
摘要
Semi-insulating multiple quantum well photorefractive devices using GaAs/Al0.29Ga0.71As with an electric field applied perpendicular to the layers are demonstrated. Semi-insulating behavior is obtained by doping with Cr(10(16)/cm3) during epitaxial growth of the material. Diffraction efficiencies as high as 3% with an applied voltage of 20 V and microsecond response times are obtained in a 2 mum thick device. These devices are of importance for implementation of fast and sensitive two-dimensional optical information processing systems at wavelengths compatible with current diode lasers without the spatial-bandwidth limitations of thick photorefractive materials.
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页码:464 / 466
页数:3
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