Speaker: Abdoulaye Ndao, Boston University

Time: 20:00 p.m., July 7, 2023, GMT+8

Venue: Scan the QR code to register

Abstract:

The quest for smaller, lighter, and more efficient optical components usually comes at the price of reduced functionalities. In this talk, I will provide an overview of how topological approaches to control light-matter interaction enable novel photonic devices with unique features and enhanced performance. I will discuss our recent breakthrough in demonstrating the first topological light source that unidirectionally outcouples to a waveguide from magnetic biased photonic crystal cavities of arbitrary shape. I will also discuss singularities of non -Hermitian systems and their application in biology and healthcare by detecting attomolar concentrations of anti-immunoglobulin G. In the last part of the talk, I will present a premier achromatic broadband metalens that is strategically engineered to span an octave bandwidth with high efficiency. Such devices will be suitable for free space and integrated optics and pave the way towards more complex and versatile systems with applications in high-capacity classical and quantum communications, as well as sensing.

Biography:

Professor Abdoulaye Ndao is an Assistant Professor of Electrical and Computer Engineering at Boston University. He was subsequently a postdoctoral researcher at UC San Diego and UC Berkeley. He received his Master and Ph.D. degrees in physics from the University of Franche Comte (France). Dr. Ndao is a recipient of ten prestigious awards, including Sculpted Light in the Brain Innovation award, Boston University Outstanding Faculty Committee Service Award,  Reidy Family Career Development Professorship. “the very best young researcher at Boston University, top ten 2021 Rising Stars of Light, top ten breakthrough by physics world, Triton Innovation Challenge grand prize winner for Lidar applications, Prize winner of Institute for the Global Entrepreneur at UC San Diego to name a few.  His research interests span wide-ranging topics in photonics, material sciences, and physics.

Source: iCANX