Strong normal-incidence infrared absorption and photo-current spectra from highly uniform (In,Ga)As/GaAs quantum dot structures

被引:14
作者
Pan, D [1 ]
Towe, E
Kennerly, S
机构
[1] Univ Virginia, Lab Opt & Quantum Elect, Charlottesville, VA 22903 USA
[2] USA, Res Lab, Adelphi, MD 20783 USA
关键词
D O I
10.1049/el:19980589
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The authors report normal-incidence infrared absorption in the wavelength rang 12-14 mu m and low temperature (40K) photocurrent spectra from an (In,Ga)As/GaAs quantum dot structure. The basic structure consists of 20 periods of highly uniform (In,Ga)As/GaAs dot arrays. The strong room temperature absorption indicates the high quality of the superlattice structure; this is considered to be very promising for the fabrication of high performance, long wavelength photodetectors.
引用
收藏
页码:1019 / 1020
页数:2
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