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A Dual Perspective On Inverse Design by Prof Sean Molesky

Prof Sean Molesky discussed how Lagrange duality heuristics for quadratically constrained quadratic optimization problems (QCQPs) can substantially lessen these knowledge gaps for a variety of common photonic design problems. As showcased by initial applications to topics including radiative...

Bulk Properties of Topological Crystalline Insulators by Prof. Barry Bradlyn

Prof. Barry Bradlyn spoke about the discovery of topological materials is one of the most transformative recent breakthroughs in condensed matter physics, revealing new conceptual surprises in established topics such as the phases of matter and the behavior of electrons in insulators. Most work on...

A Dual Perspective On Inverse Design

Seminar Link: Picoelectrodynamics Theory Network - YouTube Abstract For a wide range of technologically prescient applications---spanning from achieving low-power nonlinear response to mode-multiplexing in optical communication---device architectures discovered via computational methods increasingly...

Xueji Wang named 2022 DARPA Riser

Exciting news as Xueji Wang, PhD student in our group, has been selected as a Defense Advanced Research Projects Agency (DARPA) Riser for 2022. Mr. Wang will participate in the DARPA’s Forward conference series that provides networking opportunities to discover and engage new talents.

Bulk Properties of Topological Crystalline Insulators

Seminar Link: Picoelectrodynamics Theory Network - YouTube Abstract The discovery of topological materials is one of the most transformative recent breakthroughs in condensed matter physics, revealing new conceptual surprises in established topics such as the phases of matter and the behavior of...

Pico-electrodynamics

Seminar Link: Picoelectrodynamics Theory Network - YouTube Abstract Over the past three decades, graphene has become the prototypical platform for discovering topological phases of matter. Both the Chern C∈Z and quantum spin Hall υ∈Z2 insulators were first predicted in graphene, which led to a...

Pico-electrodynamics by Dr. Sathwik Bharadwaj

Dr. Sathwik Bharadwaj spoke about the concept of photonic frequency (ω) - momentum (q) dispersion that has been extensively studied in artificial dielectric structures such as photonic crystals and metamaterials. However, the ω-q dispersion of electrodynamic excitations hosted in natural materials...

Topological Edge Plasmons in Quantum Many-Body Systems

Seminar Link: Picoelectrodynamics Theory Network - YouTube Abstract We discuss how the many-body excitation spectrum of topological insulators is affected by the presence of long-range Coulomb interactions. In the one-dimensional Su-Schrieffer-Heeger model and its mirror-symmetric variant, strongly...

Topological Edge Plasmons in Quantum Many-Body Systems by Prof. Stephan Haas

Prof. Stephan Haas discussed how the many-body excitation spectrum of topological insulators is affected by the presence of long-range Coulomb interactions. In the one-dimensional Su-Schrieffer-Heeger model and its mirror-symmetric variant, strongly localized plasmonic excitations are observed which...