Fowler School of Engineering Seminar Series: Can We Make a Real Harry Potter Cloak?
Professor John Howell from Schmid College
Fowler Engineering Presents: Can We Make a Real Harry Potter Cloak?
Speaker: Professor John Howell
Abstract: Invisibility has fascinated mankind for thousands of years. Perseus used it to defeat Medusa’s sisters, the invisible man wreaked havoc on his community, and Harry Potter used it to find his way around Hogwarts. It represents the ultimate protection, evasion and ability for reconnaissance. However, it has much broader uses in applications ranging from creating a virtual window to surgery. In this talk, I will outline some informal definitions of cloaking and invisibility, being careful to distinguish between disappearing, hiding and invisibility. I will then discuss several techniques that are currently being pursued to achieve broadband omni-directional invisibility ranging from metamaterials to ray optics. I will discuss some of the paths we pursued to achieve invisibility including digital integral cloaking, which offers a clear, but heavily engineered, path to broadband omni-directional invisibility.
Bio: Professor Howell received his BS in Physics (1995) with a minor in Mathematics from Utah State University, and his MS and PhD in Physics (2000) from Pennsylvania State University. He then took a postdoctoral research position at the Centre for Quantum Computation at the University of Oxford. Professor Howell joined the University of Rochester in 2002 as Assistant Professor of Physics, and was promoted to Associate Professor in 2007 and Professor in 2011. Howell received a Research Innovation Award from the Research Corporation in 2004, a Presidential Early Career Award for Scientists and Engineers in 2005, and the Adolph Lomb Medal from the Optical Society of America in 2006 "For innovative contributions in quantum optics, particularly aspects of quantum cloning, violations of Bell's inequalities and maximal photonic entanglement." He was the director for the Center for Coherence and Quantum Optics from 2013 to 2017. He was an appointed VP to the International Commission for Optics by Optics (ICO) and is now serving as President of the ICO. He joined the faculty of the Racah Institute at the Hebrew University in 2017 as a full professor, but has recently moved to the Physics Department at Chapman University. He has published approximately 100 papers and has approximately 8600 citations.
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