AlP/GaP distributed Bragg reflectors

被引：7
|
作者：
Emberger, Valentin [1 ]
Hatami, Fariba [1 ]
Masselink, W. Ted [1 ]
Peters, Sven [2 ]
机构：
[1] Humboldt Univ, Dept Phys, D-12489 Berlin, Germany
[2] Sentech Instruments GmbH, D-12489 Berlin, Germany
来源：
APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 03期
关键词：
LIGHT-EMITTING-DIODES; QUANTUM-WELLS; DIELECTRIC FUNCTIONS; OPTICAL-PROPERTIES; WANNIER EXCITONS; REFRACTIVE-INDEX; GAP; DOTS; SEMICONDUCTORS; ELLIPSOMETRY;
D O I：
10.1063/1.4813748
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Distributed Bragg reflectors with high reflectivity bands centered at wavelengths from 530 to 690 nm (green to red) based on AlP/GaP quarter-wave stacks are prepared on (001) GaP using gas-source molecular-beam epitaxy. Additionally, the complex refractive index of AlP is measured using spectroscopic ellipsometry within the range of 330-850 nm in order to facilitate an accurate reflector design. Structures consisting of 15 quarter-wave stacks reach a peak reflectance between 95% and 98%, depending on the spectral position of the maximum. (C) 2013 AIP Publishing LLC.
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页数：4
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