The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
By exploiting resonance cones inside cylindrically anisotropic materials, we present two optical devices, an optical multiplexer based on the dispersive properties of a metal-insulator stack metamaterial, and a far-field bilayer subwavelength imaging system.
Leaky wave antennas can offer high directivity and frequency scanning [I]. An isotropic dielectric slab with refractive index n > 1 does not radiate effectively unless spatial variations are introduced to excite fast-wave space harmonics [I]. To realize uniform leaky wave structures, potentially in the optical domain, a metamaterial slab with n >C 1 has been proposed to achieve a narrow radiation...
We propose a leaky optical waveguide achieved with a uniaxially anisotropic metamaterial that supports both forward and backward leaky waves. The backward leaky nature is exploited in a sub-diffraction imaging system.
Anisotropic films provide a means to achieve optical circuit elements that are relatively independent of incident angle. This observation opens up a variety of circuit synthesis methods for implementing optical devices with important properties. We showed filter and anti-reflection coating examples for TM polarization that are robust to variation in the angle of incidence. Duality would lead to equivalent...
We show the features of a non-magnetic subwavelength imaging system achieved with an anisotropic bilayer. The two anisotropic layers can be implemented with metal-insulator stacks, and the resonance condition is not required for either layer.
We show a new spectrometer class achieved through resonant cones associated with dispersive anisotropic metamaterials. The anisotropic slab can be implemented by metal-insulator stacks, and a Ag/GaAs multilayer stack example is described.
We describe the imaging properties of a non-magnetic slab lens without restrictions on material parameters. The best performance appears to be with an anisotropic slab that converts evanescent fields to propagating waves.
We describe the imaging properties of a non-magnetic slab lens without restrictions on material parameters. The best performance appears to be with an anisotropic slab that converts evanescent fields to propagating waves.
We describe the imaging properties of a non-magnetic slab lens without restrictions on material parameters. The best performance appears to be with an anisotropic slab that converts evanescent fields to propagating waves.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.