Novel Hybrid Techniques based on Rigorous Optimization and AI Approaches for Inverse Design of Nanophotonic Structures

Professor Ali Adibi
School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA

Salazar 2009A
4:00 PM - 5:00 PM

Abstract: This talk is focused on new techniques for the inverse design of large-scale structures in engineering that incorporate many design parameters based on combining mathematically rigorous gradient-based approaches like topological optimization with artificial-intelligence (AI) techniques for reducing the dimensionality of the design problem by several orders of magnitude. Despite the generality of these techniques, their application to the field of photonic and electromagnetic nanostructures will be discussed. Initially, a survey of AI-based approaches for design and optimization of electromagnetic nanostructures will be presented, and their shortcomings for applying to large-scale design problems will be explained. Then, the resolution of these shortcomings through combining AI tools for dimensionality reduction with gradient-based techniques for creating a meaningful set of training data will be discussed, and it is shown how such hybrid design approaches can reduce computation requirements by several orders of magnitude.

Bio: Dr. Ali Adibi is the director of Bio and Environmental Sensing Technologies (BEST) and a professor and Joseph M. Pettit chair in the School of Electrical and Computer Engineering, Georgia Institute of Technology. He is also a member of the Winship Cancer Research Center at Emory University. His research group has pioneered several structures in the field of integrated nanophotonics for both information processing and sensing. He has also pioneered new sensing solutions for medical diagnosis as well as AI algorithms for diagnosis and prognosis in medicine. He is the author of more than 230 journal papers and 650 conference papers. He has served as the editor, conference chair, and technical committee members in over 30 different conferences and journals. He has also led several multidisciplinary research teams in the areas of integrated optics and metaphotonics for sensing, interconnection, and imaging. He is the recipient of several awards, including the Presidential Early Career Award for Scientists and Engineers, Packard Fellowship, NSF CAREER Award, and the SPIE Technology Achievement Award. He is also a fellow of IEEE, Optica, SPIE, and AAAS.