Publications by authors named "Marino Coppolaro"
Proc Natl Acad Sci U S A
June 2020
Article Synopsis
- - Doping in solid-state physics allows for the manipulation of electronic and optical properties in materials by adding small amounts of impurities, a concept that's now being applied to two-dimensional photonics, specifically in media with near-zero permittivity.
- - The study explores how introducing a nonmagnetic doping particle can achieve tunable effective magnetic responses, even considering scenarios with material losses that may be balanced by optical gain.
- - This research extends the photonic doping idea into non-Hermitian contexts, using tailored gain and loss distributions, which opens up new possibilities for unique optical behaviors and potential applications in reconfigurable nanophotonics and optical sensing.
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Article Synopsis
- Multilayered dielectric metamaterials are typically described by effective-medium models that assume a simple mixing of layers, irrespective of their arrangement.
- Recent research has revealed situations where this assumption fails, leading to unexpected phenomena in both ordered and random arrangements.
- This study specifically examines deterministic disorder using Golay-Rudin-Shapiro sequences, showcasing unique boundary effects in finite dielectric multilayers that result in unusual light-transport properties, diverging from traditional theories and opening avenues for potential applications like optical sensing and switching.
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