InGaAsP;
distributed Bragg reflector;
electron microscopy;
D O I:
10.1016/S0022-0248(98)00050-5
中图分类号:
O7 [晶体学];
学科分类号:
0702 ;
070205 ;
0703 ;
080501 ;
摘要:
We have evaluated the structure of high-reflectivity InP/InGaAsP distributed Bragg reflectors grown by chemical-beam epitaxy at a growth rate of 3 mu m/h. Transmission electron microscopy combined with electron energy loss spectroscopy indicate lateral fluctuations in the GaInAsP alloy composition, clearly visible in the 490-510 degrees C growth temperature range, but less perceptible between 460 and 480 degrees C. In the higher temperature range, the modulation in composition shows a higher frequency along the [1 (1) over bar 0] direction than along [1 1 0]. (C) 1998 Elsevier Science B.V. All rights reserved.
机构:
Univ Calif Santa Barbara, Elect & Comp Engn Dept, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Elect & Comp Engn Dept, Santa Barbara, CA 93106 USA
Reddy, MHM
Asano, T
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机构:
Univ Calif Santa Barbara, Elect & Comp Engn Dept, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Elect & Comp Engn Dept, Santa Barbara, CA 93106 USA
Asano, T
Koda, R
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Univ Calif Santa Barbara, Elect & Comp Engn Dept, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Elect & Comp Engn Dept, Santa Barbara, CA 93106 USA
Koda, R
Buell, DA
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Univ Calif Santa Barbara, Elect & Comp Engn Dept, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Elect & Comp Engn Dept, Santa Barbara, CA 93106 USA
Buell, DA
Coldren, LA
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Univ Calif Santa Barbara, Elect & Comp Engn Dept, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Elect & Comp Engn Dept, Santa Barbara, CA 93106 USA