69 citations · 264 across the 13 of their papers we have counts for
13 papers
Robust method to determine the resolution of a superlens by analyzing the near-field image of a two-slit object
B. D. F. Casse, W. T. Lu, Y. J. Huang +1
In the last decade, metamaterials-based superlenses, with a resolution below Abbe's diffraction limit, have emerged. To obtain a rough estimate of the resolution of such superlense…
Nanoengineering of a Negative-Index Binary-Staircase Lens for the Optics Regime
B. D. F. Casse, R. Banyal, W. T. Lu +4
We show that a binary-staircase optical element can be engineered to exhibit an effective negative index of refraction, thereby expanding the range of optical properties theoretica…
Nanowire waveguide made from extremely anisotropic metamaterials
Y. J. Huang, W. T. Lu, S. Sridhar
Exact solutions are obtained for all the modes of wave propagation along an anisotropic cylindrical waveguide. Closed-form expressions for the energy flow on the waveguide are also…
A new mechanism for negative refraction and focusing using selective diffraction from surface corrugation
W. T. Lu, Y. J. Huang, P. Vodo +3
Refraction at a smooth interface is accompanied by momentum transfer normal to the interface. We show that corrugating an initially smooth, totally reflecting, non-metallic interfa…
Negative refraction and plano-concave lens focusing in one-dimensional photonic crystals
P. Vodo, W. T. Lu, Y. Huang +1
Negative refraction is demonstrated in one-dimensional (1D) dielectric photonic crystals (PCs) at microwave frequencies. Focusing by plano-concave lens made of 1D PC due to negativ…
Focusing by Plano-Concave lens using Negative Refraction
P. Vodo, P. V. Parimi, W. T. Lu +1
We demonstrate focusing of a plane microwave by a plano-concave lens fabricated from a photonic crystal (PhC) having negative refractive index and left-handed electromagnetic prope…