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Concept

Lens antenna

Publications associées (25)

Broadband Dielectric Response in Hard and Soft PZT : Understanding Softening and Hardening Mechanisms

Li Jin

Lead zirconate titanate (Pb(Zr1-xTix)O3 or PZT) ferroelectric ceramics have been widely used in transducers, actuators, and sensors, since they posses high dielectric and piezoelectric properties with a relatively high temperature of operation. Commerciall ...

EPFL2011

Numerical investigations of a multi-walled carbon nanotube-based multi-segmented optical antenna

Wei Wu

Motivated by the fabrication potential of multi-walled carbon nanotube structures, we numerically investigated a paired structure consisting of two metallic spheres each grown on one end of a multi-walled nanotube. The paired two-segmented structure is cap ...

2010

A broadband and high-gain metamaterial microstrip antenna

Juan Ramon Mosig, Olivier Martin

A broad bandwidth and high gain rectangular patch antenna was specifically designed in this paper using planar-patterned metamaterial concepts. Based on an ordinary patch antenna, the antenna has isolated triangle gaps and crossed strip-line gaps etched on ...

American Institute of Physics2010

Optical Wire Antennas : Near-Field Imaging, Modeling and Emission Patterns

In this thesis we study the properties of optical wire antennas. As experimental method for our investigations we use apertureless near-field optical microscopy. This technique achieves high spatial resolution well beyond the diffraction limit by utilizing ...

EPFL2010

Prospects of resonant optical antennas for nano-analysis

Olivier Martin

Suitably shaped metal nanostructures act as resonant optical antennas that efficiently collect light and confine it to a subwavelength volume. Vice versa, light emission from nano volumes can be enhanced by coupling to antenna structures. We give a short i ...

2006