132 citations · 773 across the 48 of their papers we have counts for
4 papers · 1 filter
Negative refraction, negative phase velocity, and counterposition
Tom G. Mackay, Akhlesh Lakhtakia
The planewave response of a linear passive material generally cannot be characterized by a single scalar refractive index, as directionality of energy flow and multiple wavevectors…
Theory of Dyakonov-Tamm waves at the planar interface of a sculptured nematic thin film and an isotropic dielectric material
Kartiek Agarwal, John A. Polo, Akhlesh Lakhtakia
In order to ascertain conditions for surface-wave propagation guided by the planar interface of an isotropic dielectric material and a sculptured nematic thin film (SNTF) with peri…
Spectral shifts in the properties of a periodic multilayered stack due to isotropic chiral layers
S. Anantha Ramakrishna, Akhlesh Lakhtakia
Investigating the canonical problem of a periodic multilayered stack containing isotropic chiral layers, we homogenized it as a uniaxial bianisotropic medium and derived its effect…
On the application of homogenization formalisms to active dielectric composite materials
Tom G. Mackay, Akhlesh Lakhtakia
The Maxwell Garnett and Bruggeman formalisms were applied to estimate the effective permittivity dyadic of active dielectric composite materials. The active nature of the homogeniz…