201 citations · 301 across the 7 of their papers we have counts for
7 papers
Nonlocal Flat Optics
Kunal Shastri, Francesco Monticone
In electromagnetics and photonics, "nonlocality" refers to the phenomenon by which the response/output of a material or system at a certain point in space depends on the input fiel…
Bandwidth bounds for wide-field-of-view dispersion-engineered achromatic metalenses
Kunal Shastri, Francesco Monticone
Optical systems with wide field-of-views (FOV) are crucial for many applications such as high performance imaging, optical projection, augmented/virtual reality, and miniaturized m…
To What Extent Can Space Be Compressed? Bandwidth Limits of Spaceplates
Kunal Shastri, Orad Reshef, Robert W. Boyd +2
Spaceplates are novel flat-optic devices that implement the optical response of a free-space volume over a smaller length, effectively "compressing space" for light propagation. To…
Emulating exceptional-point encirclements using imperfect (leaky) photonic components
J. B. Khurgin, Y. Sebbag, E. Edrei +4
Non-Hermitian systems have recently attracted significant attention in photonics. One of the hallmarks of these systems is the possibility of realizing asymmetric mode switching an…
Dissipation-induced topological transitions in continuous Weyl materials
Kunal Shastri, Francesco Monticone
Many topologically non-trivial systems have been recently realized using electromagnetic, acoustic, and other classical wave-based platforms. As the simplest class of three-dimensi…
Unidirectional and diffractionless surface plasmon-polaritons on three-dimensional nonreciprocal plasmonic platforms
S. Ali Hassani Gangaraj, George W. Hanson, Mario G. Silveirinha +3
Light-matter interactions in conventional nanophotonic structures typically lack directionality. Furthermore, surface waves supported by conventional material substrates do not usu…
Realising Type II Weyl Points in an Optical Lattice
Kunal Shastri, Zhaoju Yang, Baile Zhang
The recent discovery of the Lorentz symmetry-violating 'Type II' Weyl semimetal phase has renewed interest in the study of Weyl physics in condensed matter systems. However, tuning…