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. 05, 1989
Filed:
Dec. 06, 1988
Applicant:
Inventors:
Brian S Ahern, Boxboro, MA (US);
David W Weyburne, Maynard, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372-2 ; 372 37 ;
Abstract
A static periodic field device for a free electron laser has a plurality of holes therethrough to allow the interaction of electrons flowing therethrough to interact with either an electric or a magnetic fields as desired. The device is composed of a plurality of conducting layers separated by insulating layers and appropriately connected to provide either an electric or a magnetic field therein. The separation of the conducting layers determines the raidated energy wavelength.