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:
Sep. 09, 2003
Filed:
Apr. 11, 2000
Cheng Zhang, Los Angeles, CA (US);
Harold R. Fetterman, Pacific Palisades, CA (US);
William Steier, San Marino, CA (US);
Joseph Michael, Los Angeles, CA (US);
Pacific Wave Industries, Inc., Beverly Hills, CA (US);
Abstract
Sterically stabilized second-order nonlinear optical chromophores and devices incorporating the same are embodied in a variety of chromophore materials. An exemplary preferred chromophore includes an electron donor group, an electron acceptor group and a ring-locked bridge structure therebetween, with the bridge structure being directly connected to the electron donor via a single bond. Another exemplary preferred chromophore includes an electron donor group, an electron acceptor group and a ring-locked bridge structure between the electron donor group and the electron acceptor group, with two free double bonds, one located between the donor and the bridge and the other located between the (fused) ring bridge and the acceptor. Another exemplary preferred chromophore includes an electron donor group, an electron acceptor group, and a bridge structure therebetween, with the chromophores having no carbon-carbon double bond between the donor and the (fused) ring bridge. In this class, there is only one unlocked carbon-carbon double bond between the (fused) ring bridge and the acceptor. Another exemplary preferred chromophore includes an electron donor group, an electron acceptor group, and a ring-locked bridge structure therebetween, with a built-in electron-withdrawing cyano group on the last ring of the (fused) bridge. Another exemplary preferred chromophore includes any electron donor group, an electron acceptor group including a linear conjugated triene bearing four cyano groups, and any bridge structure therebetween.