Di Fabrizio
Enzo Di Fabrizio, Roma IT
Patent application number | Description | Published |
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20130284696 | METHODS FOR OBTAINING HOLLOW NANO-STRUCTURES - Methods are provided for obtaining hollow nano-structures which include the steps of providing a suspended film starting layer on a support substrate, depositing on the starting layer a sacrificial layer, performing, in progressive sequence, a complete erosion phase of said support substrate and starting layer and performing an at least partial erosion phase of the sacrificial layer previously deposited on the starting layer so as to obtain holes passing through the starting layer and passing or non passing through the sacrificial layer, depositing, on the side of the support substrate opposite to that where the starting layer is put, at least one covering layer arranged to internally cover the holes created by the progressive erosion. Hollow nano-structures formed by such methods are also provided. | 10-31-2013 |
Enzo Mario Di Fabrizio, Trieste IT
Patent application number | Description | Published |
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20080252988 | Method of Fabricating Tridimensional Micro- and Nanostructures as Well as Optical Element Assembly Having a Tridimensional Convex Structure Obtained by the Method - A method is for forming three-dimensional micro- and nanostructures, based on the structuring of a body of material by a mould having an impression area which reproduces the three-dimensional structure in negative form. This method includes providing a mould having a substrate of a material which can undergo isotropic chemical etching, in which the impression area is to be formed. An etching pattern is defined on (in) the substrate, having etching areas having zero-, uni- or bidimensional extension, which can be reached by an etching agent. A process of isotropic chemical etching of the substrate from the etching areas is carried out for a corresponding predetermined time, so as to produce cavities which in combination make up the impression area. The method is advantageously used in the fabrication of sets of microlenses with a convex three-dimensional structure, of the refractive or hybrid refractive/diffractive type, for forming images on different focal planes. | 10-16-2008 |
Enzo Mario Di Fabrizio, Roma IT
Patent application number | Description | Published |
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20110188037 | CONCENTRATOR AND LOCATOR DEVICE OF A SOLUTE AND METHOD FOR CONCENTRATING AND LOCATING A SOLUTE - Concentrator and locator device ( | 08-04-2011 |
20110265305 | METHOD OF MANUFACTURING AN OPTICAL DETECTION DEVICE - Method for manufacturing an optical detection device includes producing metal nanospheres on a substrate ( | 11-03-2011 |
20120045578 | METHOD FOR MANUFACTURING A PHOTONIC CRYSTAL DEVICE PROVIDED WITH A PLASMONIC WAVEGUIDE - A method for manufacturing a photonic crystal device provided with a plasmonic waveguide includes: preparing a membrane; applying, in a programmed manner, a focused ion beam on the membrane, in a manner such as to obtain a photonic crystal made up by a regular planar arrangement of through holes positioned according to a preset lattice and also comprising a resonant cavity. The method also provides a conic plasmonic waveguide at the resonant cavity, through chemical vapour deposition induced by a focused electron beam. The focused electron beam that induces la deposition is controlled in such a manner to gradually reduce the transverse section of the electron beam starting from the base up to the tip of the projecting structure, maintaining the position of the electron beam constant. | 02-23-2012 |
Giuseppe Di Fabrizio, Florham Park, NJ US
Patent application number | Description | Published |
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20100088160 | Automatic Learning for Mapping Spoken/Text Descriptions of Products onto Available Products - A method, processing device, and machine-readable medium are provided. Costs of states of a state space are calculated. Each state represent one or more available product attributes having zero or more decided attribute values. The calculating is based, at least in part, on training data associated with previously requested and offered products. Determining a next state such that one or more products are available and a sum of values, including a cost of a next state and a cost of a perturbation of one of the one or more requested product attribute values to reach the next state is a minimum value. A value for a product attribute is mapped according to the minimum sum of values and product attribute values of available products. | 04-08-2010 |