<h1>Li, Cheng</h1>
<h2>Book Chapter from <a href="https://authors.library.caltech.edu">CaltechAUTHORS</a></h2>
<ul>
<li>Li, Cheng and Lohrey, Trevor, el al. (2021) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20220421-197072600">Part-per-trillion trace gas detection using frequency-locked whispering gallery mode microtoroids</a>; ISBN 9781510642133; Integrated Optics: Devices, Materials, and Technologies XXV; Art. No. 116890B; <a href="https://doi.org/10.1117/12.2578032">10.1117/12.2578032</a></li>
</ul>