Constance Chang-Hasnain wins 2022 Welker Award

EE alumna and EECS Prof. Emerita Constance Chang-Hasnain (Ph.D. '87) has won the 2022 Welker Award at Compound Semiconductor Week (CSW). She was cited “For pioneering contributions to VCSEL photonics, nano-photonics and high contrast metastructures for optical communications and optical sensing.” Vertical-cavity surface-emitting lasers, or VCSELs, are used in many consumer electronics, including 3D smartphone sensors and cars. Established in 1976 in honor of Heinrich Welker, the pioneer of III-V compound semiconductors, the Welker Award is given to those who have made outstanding contributions to the field of III-V compound semiconductors. Prof. Chang-Hasnain currently serves as Chairperson and founder of Berxel Photonics Co. Ltd. She is an NAI Fellow, an IEEE Fellow, and an NAE member. In 2021, she was elected president of Optica (formerly known as the Optical Society of America).