Willie J. Padilla
Duke University
216 Papers
2.9K Citations
Willie J. Padilla is an academic researcher from Duke University. The author has contributed to research in topics: Metamaterial & Terahertz radiation. The author has an hindex of 57, co-authored 209 publications. Previous affiliations of Willie J. Padilla include Chestnut Hill College & Boston College.
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Papers
Composite Medium with Simultaneously Negative Permeability and Permittivity
TL;DR: A composite medium, based on a periodic array of interspaced conducting nonmagnetic split ring resonators and continuous wires, that exhibits a frequency region in the microwave regime with simultaneously negative values of effective permeability and permittivity varepsilon(eff)(omega).
Perfect metamaterial absorber.
TL;DR: This work fabricate, characterize, and analyze a MM absorber with a slightly lower predicted A(omega) of 96%.
7K
Active terahertz metamaterial devices
TL;DR: An active metamaterial device capable of efficient real-time control and manipulation of terahertz radiation is demonstrated, which enables modulation of THz transmission by 50 per cent, an order of magnitude improvement over existing devices.
1.9K
Metamaterial Electromagnetic Wave Absorbers
TL;DR: The ability of the MPA to exhibit extreme performance flexibility will be discussed and the theory underlying their operation and limitations will be established and Insight is given into what the authors can expect from this rapidly expanding field and future challenges will be addressed.
1.8K
Terahertz magnetic response from artificial materials.
Ta-Jen Yen,Ta-Jen Yen,Ta-Jen Yen,Willie J. Padilla,Willie J. Padilla,Willie J. Padilla,Nicholas X. Fang,Nicholas X. Fang,Nicholas X. Fang,D. C. Vier,D. C. Vier,D. C. Vier,David R. Smith,David R. Smith,David R. Smith,John B. Pendry,John B. Pendry,John B. Pendry,Dmitri Basov,Dmitri Basov,Dmitri Basov,Xiang Zhang,Xiang Zhang,Xiang Zhang +23 more
TL;DR: It is shown that magnetic response at terahertz frequencies can be achieved in a planar structure composed of nonmagnetic conductive resonant elements and suggested that artificial magnetic structures, or hybrid structures that combine natural and artificial magnetic materials, can play a key role in teraHertz devices.
1.6K