Andy has successfully defended his PhD thesis work on “Antireflection Nanostructures at Material Interfaces for Enhancement of Optical Properties.” Special thanks to Andy’s Doctoral Committee members Adela Ben-Yakar, Daniel Wasserman, and SV Sreenivasan. Congratulations Dr Chen!
![](https://sites.utexas.edu/chang/files/2021/06/MicrosoftTeams-image-1024x640.png)