The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 2014
Filed:
Aug. 28, 2012
Kevin A. Boulais, LaPlata, MD (US);
Pearl Rayms-keller, Fredericksburg, VA (US);
Michael S. Lowry, Fredericksburg, VA (US);
Francisco Santiago, Fredericksburg, VA (US);
Karen J. Long, Upper Marlboro, MD (US);
Walter D. Sessions, King George, VA (US);
Natasha Laguodas Wilkerson, College Park, MD (US);
Reniery Cevallos, King George, VA (US);
Kevin A. Boulais, LaPlata, MD (US);
Pearl Rayms-Keller, Fredericksburg, VA (US);
Michael S. Lowry, Fredericksburg, VA (US);
Francisco Santiago, Fredericksburg, VA (US);
Karen J. Long, Upper Marlboro, MD (US);
Walter D. Sessions, King George, VA (US);
Natasha Laguodas Wilkerson, College Park, MD (US);
Reniery Cevallos, King George, VA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A material is provided for switching dielectric constant between distinct first and second values responsive to electromagnetic radiation having a specified energy. The material includes a medium transparent to the radiation and a plurality of particulates. Each particulate has a dipole that assumes one of distinct first and second parameters that correspond to the first and second values. The particulates are suspended within the medium. The parameters are either dipole span or charge strength. The dipole of each particulate sets to the first parameter by default and sets to the second parameter in response to the radiation. The particulates can be composed from undoped semi-insulating gallium arsenide. The medium can be polymethylmethacrylate, for example.