374 citations · 2.3k across the 22 of their papers we have counts for
5 papers · 1 filter
High reflection from a one-dimensional array of graphene nanoribbons
Nathan Zhao, Zhexin Zhao, Ian Williamson +3
We show that up to 90% reflectivity can be achieved by using guided plasmonic resonances in a one-dimensional periodic array of plasmonic nanoribbon. In general, to achieve strong…
Broadband optical switch based on an achromatic photonic gauge potential in dynamically modulated waveguides
Ian A. D. Williamson, Shanhui Fan
We demonstrate that a photonic gauge potential, which arises from the phase degree of freedom in dynamic refractive-index modulation and hence is achormatic, can be used to achieve…
Zero-index bound states in the continuum
Momchil Minkov, Ian A. D. Williamson, Meng Xiao +1
Metamaterials with an effective zero refractive index associated to their electromagnetic response are sought for a number of applications in communications and nonlinear optics. A…
Adjoint method and inverse design for nonlinear nanophotonic devices
Tyler W. Hughes, Momchil Minkov, Ian A. D. Williamson +1
The development of inverse design, where computational optimization techniques are used to design devices based on certain specifications, has led to the discovery of many compact,…
Absence of unidirectionally propagating surface plasmon-polaritons in nonreciprocal plasmonics
Siddharth Buddhiraju, Yu Shi, Alex Song +5
In the presence of an external magnetic field, the surface plasmon polariton that exists at the metal-dielectric interface is believed to support a unidirectional frequency range n…