Demonstration of distributed bragg reflectors for deep ultraviolet applications

被引:13
|
作者
Getty, Amorette R. K. [1 ]
David, Aurelien [1 ]
Wu, Yuan [1 ]
Weisbuch, Claude [1 ]
Speck, James S. [1 ]
机构
[1] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA
关键词
distributed Bragg reflector; aluminum gallium nitride; III-nitrides; semiconductors; reflectors; optical devices; ultraviolet;
D O I
10.1143/JJAP.46.L767
中图分类号
O59 [应用物理学];
学科分类号
摘要
AlGaN/AlGaN distributed Bragg reflectors (DBRs) have been developed for potential use in deep-UV light emitting diodes (LEDs) and exceed the performance of all previously reported nitride DBRs for deep-UV wavelengths. The DBRs were grown on 4H-SiC by plasma-assisted molecular beam epitaxy. All layers had Al content exceeding 50% thus minimizing light absorption within the structure. DBRs are demonstrated with 19.5 periods to be 80% reflective at 254 and 280 nm, with clear routes for improvement.
引用
收藏
页码:L767 / L769
页数:3
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