340 citations · 784 across the 11 of their papers we have counts for
11 papers
Slow light, open cavity formation, and large longitudinal electric field on slab waveguide made of indefinite permittivity materials
W. T. Lu, S. Sridhar
The optical properties of slab waveguides made of indefinite permittivity ($\vep$) materials (IEM) are considered. In this medium the transverse permittivity is negative while the…
Superlens imaging theory for anisotropic nanostructured metamaterials with broadband all-angle negative refraction
W. T. Lu, S. Sridhar
We show that a metamaterial consisting of aligned metallic nanowires in a dielectric matrix has strongly anisotropic optical properties. For filling ratio f<1/2, the composite medi…
Alternative approach to all-angle negative refraction in two-dimensional photonic crystals
Y. J. Huang, W. T. Lu, S. Sridhar
We show that with an appropriate surface modification, a slab of photonic crystal can be made to allow wave transmission within the band gap. Furthermore, negative refraction and a…
Duality between quantum and classical dynamics for integrable billiards
W. T. Lu, Weiqiao Zeng, S. Sridhar
We establish a duality between the quantum wave vector spectrum and the eigenmodes of the classical Liouvillian dynamics for integrable billiards. Signatures of the classical eigen…
Negative Refraction and Left-handed electromagnetism in Microwave Photonic Crystals
P. V. Parimi, W. T. Lu, P. Vodo +2
We demonstrate negative refraction of microwaves in metallic photonic crystals. The spectral response of the photonic crystal, which manifests both positive and negative refraction…
Fractal Weyl laws for chaotic open systems
W. T. Lu, S. Sridhar, Maciej Zworski
We present a result relating the density of quantum resonances for an open chaotic system to the fractal dimension of the associated classical repeller. The result is supported by…