Browsing by Author "Zhang, B. P."

Now showing 1 - 1 of 1

Control of optical loss in GaN-based planar cavities
(2015-12-01)
Ying, L. Y.
;
Hu, X. L.
;
Liu, W. J.
;
Zhang, J. Y.
;
Zhang, B. P.
Optical losses in GaN-based resonant planar cavity are discussed and experimentally examined in respects of indium tin oxide (ITO) inner-cavity current spreading layer, the defect-rich GaN layer, and multi-quantum well (MQW) active region. Devices with different structures are adopted to study the optical loss. It is demonstrated that a thin ITO layer and a coupled MQW active region are essential to achieve a low loss and high Q-value cavity. The results show that low-loss MQW design is particularly important in fabricating high-Q value GaN-based planar cavities. (C) 2015 Elsevier Ltd. All rights reserved.