LMI Seminar: Topological light sources and sensors

Prof. Boubacar Kanté, University of California

27 January 2021, 16:00 
Zoom: https://us02web.zoom.us/j/84071155561?pwd=bDUvNXVBOEVVWkM1YWZGUjNDeFFzUT09 
LMI Seminar

Zoom: https://us02web.zoom.us/j/84071155561?pwd=bDUvNXVBOEVVWkM1YWZGUjNDeFFzUT09



Topology plays a fundamental role in contemporary physics and enables new information processing schemes and wave device physics with built-in robustness. Recently, significant efforts have been devoted to transposing topological principles to bosonic systems. In the first part of this talk, I will discuss our invention of the first topological laser, a non-reciprocal light source capable of coupling stimulated emission to selected waveguide output in a controllable manner. I will also discuss unique optical devices based on this platform. In the second part of the talk, I will discuss our recently proposed scheme to systematically implement singularities known as exceptional points in passive plasmonics. I will discuss the new scheme and how we overcame current immuno-assay nano sensing record with plasmons by more than two orders of magnitude






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