Prof. Zhang is awarded Senior Membership from The Optical Society (OSA) on July 21st, 2021. The Senior Member distinction, awarded this year to 196 OSA members, recognizes experience and professional accomplishment within the field of optics and photonics. 

https://www.osa.org/en-us/about_osa/newsroom/news_releases/2021/the_optical_society_announces_2021_class_of_senior/