Brian Edwards
Contributor at Freelance
Investigative reporter. My heart-shaped locket has pictures of the @MGMAdvertiser and @mndailynews. Other bylines in @BiPiSci, @AP, @ProPublica, @NPR, @LAist
Articles
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1 month ago |
nature.com | Victor Pacheco-Peña |Diego Solis |Brian Edwards
AbstractWe introduce a mechanism that can both hold and amplify electromagnetic waves by rapidly changing the permittivity of the medium during the wave travel from a positive to a dispersionless (i.e. non-Foster) negative value and then back again. The underlying physics behind this phenomenon is theoretically explored by considering plane wave and Gaussian pulse propagation in an unbounded medium.
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Jan 20, 2025 |
nature.com | Brian Edwards |Nader Engheta
AbstractThe ability to perform mathematical computations using metastructures is an emergent paradigm that carries the potential of wave-based analog computing to the realm of near-speed-of-light, low-loss, compact devices. We theoretically introduce and experimentally verify the concept of a reconfigurable metastructure that performs analog complex mathematical computations using electromagnetic waves.
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Feb 19, 2024 |
nature.com | Brian Edwards
AbstractStructured optical materials create new computing paradigms using photons, with transformative impact on various fields, including machine learning, computer vision, imaging, telecommunications, and sensing. This Perspective sheds light on the potential of free-space optical systems based on engineered surfaces for advancing optical computing.
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Feb 16, 2024 |
nature.com | Farshid Ashtiani |Brian Edwards |Firooz Aflatouni |Vahid Nikkhah |Ali Pirmoradi
AbstractInverse-designed silicon photonic metastructures offer an efficient platform to perform analogue computations with electromagnetic waves. However, due to computational difficulties, scaling up these metastructures to handle a large number of data channels is not trivial. Furthermore, a typical inverse-design procedure is limited to a small computational domain and therefore tends to employ resonant features to achieve its objectives.
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Jul 31, 2023 |
mdpi.com | Brian Edwards |Bamin Khomami
This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessFeature PaperArticlebyMahdi Boudaghi, Brian J. Edwards * and Bamin Khomami * Materials Research and Innovation Laboratory, Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA*Authors to whom correspondence should be addressed.
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