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Dr. Volker Sorger

Department of Electrical and Computer Engineering at the George Washington University, director of the Orthogonal Physics Enabled Nanophotonics (OPEN) lab

April 10, 3:30 PM

Thirkield Hall (Physics), room 103


Nanophotonics 3.0: Attojoule Optoelectronics, Optical Information Processing and Photonic Compute-Engines

In nanophotonics we create optical material-systems, which are structured at length- scales smaller than the wavelength of light. When light propagates inside such sub-diffraction limited waveguide modes and cavities numerous novel and exciting physical phenomena emerge including unity-high index modulation, strong Purcell enhancement, and selective exciton- polariton modifications. However, in order to make use of these opportunities for real-world applications, one has to have the ability to integrate nanophotonic structures into functional devices, synergistic links and circuits. In this talk, I present some of our recent theoretical and experimental progress in exploring thresholdless lasing, attojoule-per-bit efficient modulators, and plasmonic and Soliton-based switching. Furthermore, I will show fundamental scaling laws of nanophotonic devices and derive a Figure- of-merit for optical information flow. Using the bosonic character of photons we develop in-the-network information processing engines. Here we map the computational algorithm onto the photonic hardware to demonstrate optical analogue compute engines based on residue arithmetic and neuromorphic computing.



Refreshments will be served at 3:15pm