Armen M Gulian

US Patent:

7884051, Feb 8, 2011

Filed:

Feb 23, 2010

Appl. No.:

12/710751

Inventors:

Armen M Gulian - Washington DC, US
Kent S Wood - Washington DC, US
Deborah Van Vechten - Washington DC, US
Vahan R Nikoghosyan - Ashtarak-2, AM

International Classification:

H01L 39/24

US Classification:

505325, 505410, 505411, 505412

Abstract:

The invention herein is directed towards a method of making material exhibiting superconductivity characteristics which includes a laser processed region of a metal oxide crystal. The material has a transition temperature greater than a transition temperature of the metal oxide crystal, preferably greater than 140K. The transition temperature of the material may be considered greater than the transition temperature of the metal oxide crystal if the material has a transition temperature and the metal oxide crystal has no transition temperature. The present invention is also directed to a material which includes a laser processed strontium ruthenate crystal wherein the material has a greater oxygen content than the starting strontium ruthenate crystal. The present invention is also directed towards a method for manufacturing a material exhibiting superconductivity characteristics that includes providing a metal oxide crystal and laser ablating the metal oxide crystal and a material made by this process.

US Patent:

7888290, Feb 15, 2011

Filed:

Sep 12, 2006

Appl. No.:

11/530973

Inventors:

Armen Gulian - Washington DC, US
Kent S Wood - Washington DC, US
Deborah Van Vechten - Washington DC, US
Vahan R Nikoghosyan - Ashtarak-2, AM

International Classification:

H01L 39/24

US Classification:

505237, 505325, 505410, 505411, 505412

Abstract:

The invention herein is directed towards a material exhibiting superconductivity characteristics which includes a laser processed region of a metal oxide crystal. The material has a transition temperature greater than a transition temperature of the metal oxide crystal, preferably greater than 140K. The transition temperature of the material may be considered greater than the transition temperature of the metal oxide crystal if the material has a transition temperature and the metal oxide crystal has no transition temperature. The present invention is also directed to a material which includes a laser processed strontium ruthenate crystal wherein the material has a greater oxygen content than the starting strontium ruthenate crystal. The present invention is also directed towards a method for manufacturing a material exhibiting superconductivity characteristics that includes providing a metal oxide crystal and laser ablating the metal oxide crystal and a material made by this process.

US Patent:

20010042831, Nov 22, 2001

Filed:

Mar 22, 2001

Appl. No.:

09/813858

Inventors:

Kent Wood - Chevy Chase MD, US
Gilbert Fritz - Alexandria VA, US
Armen Gulian - Ashton MD, US
Deborah Vechten - Ashton MD, US

International Classification:

G01J005/00

US Classification:

250/338100, 338/018000

Abstract:

A fast photon detector with high energy and position resolution, which may be used in the infrared, ultraviolet, EUV, and X-ray ranges includes an absorber, a thermoelectric sensor, a heat sink, all disposed on a dielectric substrate. An absorber receives a photon and transforms the energy of the photon into a change in temperature within the absorber. A thermoelectric sensor is thermally coupled to the absorber. When the absorber receives the photon, the energy of the photon is very quickly transformed into a time dependent temperature difference across the sensor. A heat sink is thermally coupled to the sensor, to maintain the heat flow across the sensor. The absorber, sensor, and heat sink are disposed upon a dielectric substrate, such that the heat transfer from the sensor to the dielectric substrate is much slower than the signal duration. In another main embodiment, an anisotropic, thin superconducting oxide film is disposed upon a dielectric substrate. The superconducting oxide film in normal state acts as a thermoelectric sensor, and absorbs photons. A large voltage response across the longitudinal direction of the sensor results from the temperature gradient between the top of the sensor and the dielectric substrate, which acts as a heat sink. In this case, the signal duration equals the duration of the heat transfer across the sensor. Optionally, a metallic absorber and an optional insulating layer (or a non-electrically conducting absorber) are disposed upon and thermally coupled to the thin normal state superconducting oxide film to ensure high quantum efficiency of photon absorption.

US Patent:

20170276827, Sep 28, 2017

Filed:

Mar 28, 2016

Appl. No.:

15/082958

Inventors:

Armen Gulian - Ashton MD, US
Joe Gaines Foreman - Alexandria VA, US
Louis Sica, JR. - Alexandria VA, US
Vahan R. Nikoghosyan - Ashtarak, AM
Shmuel Nussinov - Kensington MD, US

International Classification:

G01V 7/10
G01L 3/22

Abstract:

A superconducting gravitational wave senser includes a toroid-like torque body having first and second diametrically opposed mass objects to provide a bi-pole mass distribution about its Z-axis for torque perturbations by gravitational waves. The torque body includes superconducting material that produces a magnetic field when perturbed; the field indicative a gravitation wave.

US Patent:

20150128696, May 14, 2015

Filed:

Nov 11, 2013

Appl. No.:

14/076585

Inventors:

Joe Foreman - Alexandria VA, US
Armen Gulian - Ashton MD, US
Louis Sica, JR. - Alexandria VA, US
Vahan R. Nikoghosyan - Ashtarak, AM
Shmuel Nussinov - Kensington MD, US
Jeff Tollaksen - Laguna Beach CA, US

International Classification:

G01P 15/00
G01V 7/00
G01R 33/035

US Classification:

73382 R, 7351439

Abstract:

This invention detects mass and mass motion of external objects by virtue of its action as a gravimeter, gravity gradiometer, and detector of gravitational fields. This invention is for devices which function as accelerometers and gyroscopes for the bodies to which they are attached.