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. 24, 2004
Filed:
Feb. 12, 2002
Yiping Zhao, Troy, NY (US);
Yuchuan Chen, Troy, NY (US);
Xi-Cheng Zhang, Latham, NY (US);
Nachiket R. Raravikar, Troy, NY (US);
Pulickel M. Ajayan, Clifton Park, NY (US);
Toh-Ming Lu, Loudonville, NY (US);
Gwo-Ching Wang, Loudonville, NY (US);
Linda S. Schadler Feist, Clifton Park, NY (US);
Rensselaer Polytechnic Institute, Troy, NY (US);
Abstract
An ultrafast all-optical nonlinear switch. The switch has as components a substrate and a material disposed on the substrate. In one embodiment, the material includes a plurality of single-walled carbon nanotubes and a polymer forming a composite. Preferably, the polymer is polyimide. In another embodiment, the material includes a plurality of single-walled carbon nanotubes incorporated into a silica. The nanotube loading in the material is less than about 0.1 wt %. The material is a substantially transparent, third-order nonlinear optical material. The switch has a switching speed of less than 1 picosecond for light with a wavelength of about 1.55 micrometers. Also disclosed is a process for preparing the ultrafast all-optical nonlinear switch.