Abstract
Whispering gallery mode resonators are key devices for integrated photonics. Despite their generalization in fundamental and applied science, information on spatial confinement of light in these structures is mostly retrieved from purely spectral analysis. In this work, we present a detailed spectral and spatial characterization of whispering gallery modes in active semiconductor microdisk resonators by use of hyperspectral cathodoluminescence. By comparing our experimental findings to finite element simulations, we demonstrate that the combination of spectral and spatial measurements enables unique identification of the modes and even reveals specific features of the microresonator geometry, such as a wedge profile.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
Gangyi Zhu, Jiaping Li, Jitao Li, Jiyuan Guo, Jun Dai, Chunxiang Xu, and Yongjin Wang
Opt. Lett. 43(4) 647-650 (2018)
Guoping Lin, Rémi Henriet, Aurélien Coillet, Maxime Jacquot, Luca Furfaro, Gilles Cibiel, Laurent Larger, and Yanne K. Chembo
Opt. Lett. 43(3) 495-498 (2018)
Cong Chen, Lei Wan, Hengky Chandrahalim, Jian Zhou, Hui Zhang, Sangha Cho, Ting Mei, Hiroaki Yoshioka, Huiping Tian, Naoya Nishimura, Xudong Fan, L. Jay Guo, and Yuji Oki
Opt. Express 26(1) 233-241 (2018)