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:
Aug. 14, 1990
Filed:
Oct. 11, 1989
Christopher B Rider, Rochester, NY (US);
Michael Scozzafava, Rochester, NY (US);
Jay S Schildkraut, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A nonlinear optical article for the controlled propagation of electromagnetic radiation is disclosed. The article includes a reflective metal layer having a thickness in the range of from 100 to 1000 .ANG. and work function in the range of from 2.5 to 4.5 eV, an optical coupler, a dielectric medium comprised of a poled polymeric layer exhibiting a glass transition temperature of at least 50.degree. C. and a second order polarization susceptibility greater than 10.sup.-9 electrostatic units, and means for variably applying an electrical potential to a surface of the dielectric medium remote from the reflective metal layer. A protective metal fluoride or oxide layer having a thickness of less than 0.1 .mu.m is interposed between the reflective metal layer and the poled polymeric layer.