Professor Xin Zhang, Boston University
Photonic metamaterial devices enabled by microsystems
Abstract: Photonic metamaterials consisting of subwavelength “meta-atoms” have received enormous interest due to their extraordinary and unprecedented electromagnetic properties. Particularly, the effective permittivity and permeability can be tailored and reconfigured to construct metamaterial devices by modulating or actuating the constituting meta-atoms. In the course of the development of metamaterials, microsystems pave the way for the emergence of functional photonic devices across the electromagnetic spectrum. In this talk, I will present research on MEMS-enabled metamaterial devices, from the fundamental physics to their applications to bridge the terahertz gap. Multifunctional terahertz devices including metamaterial enhanced biological/chemical sensors, detectors, spatial light and phase modulators, and perfect absorbers, will be introduced.
About: Xin Zhang a Professor with the Department of Mechanical Engineering, the Division of Materials Science and Engineering, and the Photonics Center at Boston University. Her research interests include the fundamental and applied aspects of micro/nanoelectromechanical systems, understand and exploit interesting characteristics of physics, materials, mechanics, and manufacturing technologies with forward-looking engineering efforts and practical applications ranging from energy to health care to homeland security. She is a fellow of the AAAS, AIMBE, ASME, IEEE, and OSA. In 2016, she was a recipient of the IEEE Sensors Council Technical Achievement Award (advanced career) for distinguished contributions to micro/nanoelectromechanical systems.