University of California

Other

Gas Technology Institute

Ethertronics, Inc.

Eli Yablonovitch

Laurent Desclos

Sebastian Rowson

Stefano Cabrini

Roland Winston

Hamid Ali Abbasi

Hyuck Choo

Aleksandr Kozlov

David F Cygan

P James Schuck

Xiaogan Liang

Peter J Schuck

Alexander Weber-Bargioni

Wei Bao

Mauro Melli

Dan Sievenpiper

A hybrid solar system including a hybrid solar collector using non-imaging optics and photovoltaic components and a heat transfer and storage system in thermal communication with the hybrid solar collector, the heat transfer and storage system using particle laden gas as thermal media to simultaneously generate and store electricity and high temperature dispatchable heat.

Hybrid solar system

The present invention provides a plasmonic optical transformer to produce a highly focuses optical beam spot, where the transformer includes a first metal layer, a dielectric layer formed on the first metal layer, and a second metal layer formed on the dielectric layer, where the first metal layer, the dielectric layer, and the second layer are patterned to a shape including a first section having a first cross section, a second section following the first section having a cross-section tapering from the first section to a smaller cross-section, and a third section following the second section having a cross-section matching the tapered smaller cross-section of the second section.

Nano-fabricated plasmonic optical transformer

This disclosure provides systems, methods, and apparatus related to probes for multidimensional nanospectroscopic imaging. In one aspect, a method includes providing a transparent tip comprising a dielectric material. A four-sided pyramidal-shaped structure is formed at an apex of the transparent tip using a focused ion beam. Metal layers are deposited over two opposing sides of the four-sided pyramidal-shaped structure.

Probes for multidimensional nanospectroscopic imaging and methods of fabrication thereof

The shielded spiral sheet antenna concept permits a small efficient antenna structure that is much smaller than the electromagnetic wavelength. In such small structures, the radiation usually goes almost all directions. A geometrical structure that shields the radiation from absorbers, and it directs the radiation in the opposite direction. This is difficult to achieve in very small radiators. At the same time, the shielded spiral sheet structure is more efficient than other antennas. Its radiation is shielded from an adjacent absorber by an asymmetric metallic border. The specifications of the asymmetric metallic border are given by an operational mathematical procedure.

Shielded spiral sheet antenna structure and method

The spiral sheet antenna allows a small efficient antenna structure that is much smaller than the electromagnetic wavelength. It achieves the small size by introducing a high effective dielectric constant through geometry rather than through a special high dielectric constant material. It typically includes a rectangular cylinder-like shape, with a seam. The edges of the seam can overlap to make a high capacitance, or they can make a high capacitance by simply having the edges of the seam very close to each other. The high capacitance serves the same role as a high dielectric constant material in a conventional compact antenna.

Magnetic dipole antenna structure and method

A two dimensional periodic pattern of capacitive and inductive elements defined in the surface of a metal sheet are provided by a plurality of conductive patches each connected to a conductive back plane sheet between which an insulating dielectric is disposed. The elements acts to suppress surface currents in the surface defined by them. In particular, the array forms a ground plane mesh for use in combination with an antenna. The performance of a ground plane mesh is characterized by a frequency band within which no substantial surface currents are able to propagate along the ground plane mesh. Use of such a ground plane in aircraft or other metallic vehicles thereby prevents radiation from the antenna from propagating along the metallic skin of the aircraft or vehicle. This eliminates surface currents between the antenna and the ground plane thereby reducing power loss and unwanted coupling between neighboring antennae. The surface also reflects electromagnetic waves without the phase shift that occurs on a normal metal surface. This allows antennas to be constructed that were previously impractical.

Circuit and method for eliminating surface currents on metals

Growing community of inventors

Oakland, CA, United States of America

Eli Yablonovitch