GaN vertical-cavity surface-emitting laser with a high-contrast grating reflector

Tsu Chi Chang, Shuo Yi Kuo, Ehsan Hashemi, Åsa Haglund, Tien-chang Lu

研究成果: Conference contribution同行評審

6 引文 斯高帕斯(Scopus)

摘要

We report a GaN-based VCSEL with a high-contrast grating (HCG) as the top mirror. The HCG consisted of TiO2 and rested directly on the n-GaN without an airgap or the use of any DBR layers to boost the reflectivity. The full VCSEL structure was optically pumped at room temperature and showed a lasing threshold of approximately 0.69MW/cm2 and a lasing wavelength at 369.1 nm. This first demonstration of lasing in a HCG GaN-based VCSEL opens up the possibility to explore all the potential benefits of HCGs in the blue and ultraviolet spectral regime.

原文English
主出版物標題High Contrast Metastructures VII
編輯Connie J. Chang-Hasnain, Andrei Faraon, Fumio Koyama, Weimin Zhou
發行者SPIE
ISBN(電子)9781510615694
DOIs
出版狀態Published - 1 1月 2018
事件High Contrast Metastructures VII 2018 - San Francisco, United States
持續時間: 29 1月 201831 1月 2018

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
10542
ISSN(列印)0277-786X
ISSN(電子)1996-756X

Conference

ConferenceHigh Contrast Metastructures VII 2018
國家/地區United States
城市San Francisco
期間29/01/1831/01/18

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