@inproceedings{fd52e60371d9471ea94fe4aa75562092,
title = "GaN vertical-cavity surface-emitting laser with a high-contrast grating reflector",
abstract = "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.",
keywords = "GaN, high contrast grating (HCG), TiO, vertical cavity surface emitting laser (VCSEL)",
author = "Chang, {Tsu Chi} and Kuo, {Shuo Yi} and Ehsan Hashemi and {\AA}sa Haglund and Tien-chang Lu",
year = "2018",
month = jan,
day = "1",
doi = "10.1117/12.2289318",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Chang-Hasnain, {Connie J.} and Andrei Faraon and Fumio Koyama and Weimin Zhou",
booktitle = "High Contrast Metastructures VII",
address = "美國",
note = "High Contrast Metastructures VII 2018 ; Conference date: 29-01-2018 Through 31-01-2018",
}