194 citations · 3.3k across the 209 of their papers we have counts for
12 papers · 1 filter
Exceptional compound plasmon-polariton waves
Akhlesh Lakhtakia, Chenzhang Zhou, Tom G. Mackay
Ordinarily, a trimaterial structure comprising a sufficiently thin metal film interposed between two homogeneous dielectric materials guides compound plasmon-polariton (CPP) waves,…
Stepwise Chirping of Chiral Sculptured Thin Films for Bragg Bandwidth Enhancement
Akhlesh Lakhtakia
A stepwise chirping of the periodicity of a chiral sculptured thin film is shown to considerably enhance the bandwidth of the Bragg regime, thereby extending the frequency range of…
Radar pulse correlation from uniformly translating targets
Timothy J. Garner, Akhlesh Lakhtakia
Radars often use correlation of received signals with transmitted signals to identify targets. However, when a target translates at a high uniform speed, the correlation of the tra…
From unexceptional to doubly exceptional surface waves
Akhlesh Lakhtakia, Tom G. Mackay
An exceptional surface wave can propagate in an isolated direction, when guided by the planar interface of two homogeneous dielectric partnering mediums of which at least one is an…
Double-absorber thin-film solar cell with 34% efficiency
Faiz Ahamd, Akhlesh Lakhtakia, Peter B. Monk
Power-conversion efficiency is a critical factor for the wider adoption of solar-cell modules. Thin-film solar cells are cheap and easy to manufacture, but their efficiencies are l…
Electromagnetic surface waves at exceptional points
Akhlesh Lakhtakia, Tom G. Mackay, Chenzhang Zhou
Guided by the planar interface of two dissimilar linear, homogeneous mediums, a Voigt surface wave arises due to an exceptional point of either of the two matrixes necessary to des…